This Cheesy Hashbrown Breakfast Casserole is everything you need on Christmas morning! (Or anytime you have guests for breakfast!) Hashbrowns are baked til crispy, then topped with eggs, cheese, and black forest ham. It’s an overnight recipe, so you have more time for stockings in the morning! Make ahead breakfasts are always a win at the holidays. This recipe was originally posted on December 7, 2012.
Table of Contents
- Overnight Breakfast Casserole with Hash Browns, Ham, and Egg
- Hashbown Breakfast Casserole ingredients
- How to make Hash Brown Breakfast Casserole
- Hash Brown Potato Casserole variations
- Egg Bake with Hash Browns FAQs
- What do you eat with hash brown casserole?
- How long can you keep hash brown casserole in the fridge?
- And that’s your hashbrown casserole, folks.
- You will love these other breakfast ideas!
- Breakfast Hashbrown Casserole Recipe
- Blast from the past
- More Recipes you will Love!
Overnight Breakfast Casserole with Hash Browns, Ham, and Egg
I have a zit on my chin right now, and my 2-year-old Valentine keeps poking her finger at it. “Whazzat mommy, whazzat?” It’s a pimple honey. “Oh, hippo, mommy?” No, child, but it’s about the size of one.
I don’t know what it is with my face breaking out like a 13 year old’s, maybe it’s because I’m 31 now and my body switched up the numbers on my age?? What is the deal?
In less awkward news, I am here today to introduce you to my favorite easy breakfast casserole of all time. I posted this recipe back in 2012, when my blog was still just a baby. I started with all my greatest recipes, and this is definitely one of the greats. Easy? check. Feeds a crowd? check. Tons of flavor? check. CHEESE??? Hello.
Hashbown Breakfast Casserole ingredients
Here’s what you’ll need to grab at the store for your cheesy hashbrown breakfast casserole. (Quantities given in the recipe below.)
- Frozen, shredded hashbrowns.
- Butter. I use salted butter, but unsalted butter is fine too.
- Monterey Jack cheese. You can shred this from a block or buy it pre-shredded.
- Cheddar cheese. Again, pre-shredded is totally fine!
- Black forest ham, cut into bite-size pieces. Any kind of smoked ham will work in this recipe, or even deli sliced ham will do. If I don’t have leftover ham, I often buy a $5 ham steak from the store. You can also use an equivalent amount of cooked bacon or sausage. It’s hard to go wrong here!
- 8 large eggs
- Evaporated milk OR heavy cream. Evaporated milk comes from a can in the baking aisle of a grocery store. Heavy cream (sometimes called whipping cream) comes in a small carton in the refrigerated section, next to the milk.
- Seasoned salt. Where my Lawry’s fans at?? This stuff is gold. An off-brand works fine too.
- Kosher salt. Kosher salt is my favorite and I use it for everything. If all you have is table salt, use half the amount.
- Pepper
- Dry mustard powder (optional)
- Onion powder (optional)
How to make Hash Brown Breakfast Casserole
Here are the basics! (The full recipe is included below, in the recipe card.)
- Melt butter and pour it over a 9×13 inch pan full of frozen hashbrowns. (See photos)
- Bake up the buttered hashbrowns in a dish in the oven, until they get nice and crispy. This is essential for achieving non-soggy potatoes.
- Layer some cheese on top (any kind you like really–this recipe calls for Monterey Jack and cheddar)
- Layer ham over the cheese.
- Soak the whole thing with a creamy mixture of eggs, evaporated milk OR cream, seasoned salt, kosher salt, pepper, dry mustard, and onion powder.
- Pop it in the oven!
I love the flavor of the baked crispy hashbrowns with the cheesy eggs and smoked ham. It is seriously the best combo! My mother-in-law Kris found a version of this recipe in a cookbook years ago (before I married into the family) and we’ve had it for Christmas breakfast ever since.
How to make Christmas Morning Casserole the night before
You can make this hashbrown breakfast casserole and bake it up right away, or do it the night before and pop it in the oven before your guests wake up. Who doesn’t love the smell of overnight breakfast casserole in the oven, especially when someone else is making it for you? Your family is going to love you this year.
- Melt butter and pour it over a 9×13 inch pan full of frozen hashbrowns. (See photos)
- Bake up the buttered hash browns in the oven, until they get nice and crispy. This is essential for achieving non-soggy potatoes! Say no to the sog!
- Layer some cheese on top (Swiss! Gouda! Mozzarella! Sky is the limit here.)
- Layer ham over the cheese.
- Cover tightly and refrigerate overnight.
- In a large bowl, mix eggs, evaporated milk OR cream, seasoned salt, kosher salt, pepper, dry mustard, and onion powder.
- Cover and refrigerate the bowl of eggs overnight.
- In the morning, preheat your oven to 350 degrees F.
- Whisk the egg mixture once more, then pour over the potatoes in the casserole dish.
- Pop it in the oven!
I will always remember one Christmas a few years ago when we were busy getting this hashbrown breakfast casserole together in the morning. My mother-in-law Kris had it all baked up and ready to go, and it was warming on the bottom rack in the oven.
She had also made some fabulous star bread, kind of like cinnamon rolls, but in a star shape. It was completely done and already on the glass serving tray, ready to be set on the table. She put it in the warm oven on the rack above our beloved hashbrown breakfast casserole. You can see what’s coming…
Yes, the glass serving tray shattered from the heat in the oven, and we ended up with glass all over the top of our beautiful breakfast casserole. SO SAD!! I remember we had to keep holding Bumpa back (Eric’s grandpa) from stealing bites. “It’s fine!” he said. We finally got a hold of it to throw it out so that we didn’t end up taking Bumps to the ER on Christmas day.
Just look at those crispy edges. Mmmm.
Hash Brown Potato Casserole variations
Endless variations, I tell you! This recipe is THE BEST for cleaning out your fridge.
- Veggies: Add 1 to 2 cups of any pre-cooked veggies such as broccoli, asparagus, zucchini, bell peppers, or mushrooms.
- Protein options: If you’re not a ham fan, try swapping it out for chorizo, cooked breakfast sausage, or crumbled bacon! Make sure whatever meat you add is fully cooked first.
- Cheeses: They make a bazillion cheeses for a reason. Sso you can have endless variety! Try Pepper Jack, Mozzarella, Asiago, Gouda, smoked cheddar, Havarti, or Colby jack!
- Add-ins: green chilis, jalapenos, pickled jalapenos, pimientos, olives, or roasted bell peppers.
Egg Bake with Hash Browns FAQs
I love this recipe because you DON’T have to defrost the hashbrowns first. You DO have to bake them before you mix them with the other ingredients. That’s how you make them crispy and not soggy!
Yep, you sure can. Peel and shred your potatoes; using a food processor here is going to be easiest. Once you have about 30 ounces, follow the recipe as indicated! You might need to increase the time on baking the buttered potatoes (before adding the egg mixture.) You will know they are done when the tops are turning golden and they are fork tender.
What do you eat with hash brown casserole?
Side dish options, here we go!
- Breakfast: Serve alongside forever favorites like the best pancakes I’ve ever made (I swear), Liege waffles, or check out my best french toast recipe.
- Lunch: How about serving it on a plate piled with fried bacon, Flaky Buttermilk Biscuits, and collard greens?
- Dinner: Pair it with a big ol’ salad and call it good! Try this Apple Gorgonzola Salad.
- Christmas morning: Keep it simple by serving your Christmas casserole alongside a fruit tray, some baked bacon, and a big glass of orange juice or even eggnog. Or don’t keep it simple (I mean, it IS Christmas) and serve it with Cinnamon Rolls, Golden Santa Bread, or these decadent Caramel Pecan Rolls! The latter level of decadence is usually how we roll in our family. Why choose between sweet and savory breakfasts?? To quote Parks and Rec: “Why would anyone eat anything besides breakfast food?” “Because people are idiots, Leslie.”
How long can you keep hash brown casserole in the fridge?
It will keep in the fridge for about 3-5 days. After that, get your leftovers in the freezer!
Can I freeze hash brown casserole?
Yes, you can freeze leftover hashbrown casserole in an airtight container for up to 3 months.
For a make-ahead recipe, follow the recipe as usual, baking until it is not quite as browned as you would like it. Let cool completely, then seal well with foil or plastic wrap. Freeze for up to 3 months. You can either let it thaw in the fridge overnight and then follow the normal baking instructions, or bake straight from frozen. At 350, it will take about 60-90 minutes.
How do you reheat hash brown casserole?
- If you’ve got a significant portion to heat, I recommend popping it in the oven for 15-25 minutes at 350 degrees.
- If you’re catching a quick lunch from leftovers, use the microwave. Loosen the casserole with a fork and cook on high about 1 minute.
And that’s your hashbrown casserole, folks.
This is definitely the casserole your family needs this year, minus the shattered glass. Make it happen. Christmas only comes once a year! (Although I don’t know why we limit ourselves like this. You could totally section up this casserole and freeze individually. Then toss one serving into the microwave on a busy morning, and eat like a king on a random Tuesday. Try it! I have some in my freezer right now.)
UPDATE! I just posted a variation of this casserole. I used sausage and peppers and onions instead of ham. IT’S SO GOOD! Check it out here: Easy Sausage Breakfast Casserole (Overnight)
You will love these other breakfast ideas!
- Cheesy Overnight Bacon and Egg Breakfast Casserole << this is my other favorite for company.
- Creamy Make Ahead Scrambled Eggs for a Crowd << these are so easy and perfect for when you have lots of guests!
- Overnight Biscuits and Gravy Casserole << I LOVE BISCUITS AND GRAVYYYY. Casserole it up.
- Cherry Tomato, Leek, and Spinach Quiche << perfect meatless option if you are having a heavier meal later in the day.
- Breakfast Quesadillas from BellyFull
- Bacon Egg Toast Cups from The Noshery
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Breakfast Hashbrown Casserole
Ingredients
- 1 (30-ounce) package frozen shredded hashbrowns
- 1/2 cup melted butter, 1 stick
- salt and pepper
- 1 & 1/2 cups shredded Monterey Jack cheese, packed
- 1 & 1/2 cups shredded Cheddar cheese, packed
- 1 & 1/2 cups black forest ham*, cut into bite-size pieces
- 8 large eggs
- 1 & 1/3 cups evaporated milk OR cream
- 1 teaspoon seasoned salt, I like Lawry's
- 1/2 teaspoon kosher salt, use 1/4 if all you have is table salt
- 1/2 teaspoon pepper
- 1/4 teaspoon dry mustard powder, optional
- 1/4 teaspoon onion powder, optional
Instructions
- Preheat your oven to 400 degrees F.
- Spray a 9×13 inch pan with nonstick spray, or grease with butter.
- Dump the bag of frozen hashbrowns into the pan. (There is no need to thaw first.)
- Melt a stick of butter in a small bowl, and pour evenly over the potatoes. Sprinkle the potatoes with salt and pepper. Use a spoon to gently toss it all together, then spread it out so that it’s even.
- Bake at 400 degrees for 25-30 minutes, until the potatoes are tender and lightly browned on top. You can even nab a forkful to make sure they are done if you like.
- Remove the casserole and reduce the oven temperature to 350.
- Layer 1 and 1/2 cups each Monterey Jack and Cheddar cheese over the top of the potatoes (make sure you pack in your cheese! Don't skimp now!) Add the ham. You can either leave it layered or use a spoon to gently toss the cheese and potatoes and ham together. Either way is fine. (I like to toss for a more even distribution.)
- In a large bowl or stand mixer, whisk together 8 eggs, 1 and 1/3 cups evaporated milk OR cream, 1 teaspoon seasoned salt, 1/2 teaspoon kosher salt (use less if all you have is table salt!), 1/2 teaspoon pepper, 1/4 teaspoon dry mustard, and 1/4 teaspoon onion powder. Beat well.
- Pour the egg mixture evenly over the top of the casserole, making sure everything gets wet.
- Bake at 350 degrees for about 40 minutes. It is done when bubbly. The edges should be starting to brown and the center should not wiggle when you shake the pan.
- If the center of the casserole looks very wobbly but the top is starting to brown too much, cover with foil for the last few minutes of baking.
Overnight instructions:
- Follow instructions through step 5 (bake the potatoes at 400.) Remove from the oven and let cool slightly.
- Follow the instructions above for layering the cheese and ham. Cover tightly and refrigerate overnight.
- In a large bowl, whisk together 8 eggs, evaporated milk OR cream, seasoned salt, kosher salt, pepper, dry mustard, and onion powder. Beat well.
- Cover the egg mixture and refrigerate overnight.**
- In the morning, preheat your oven to 350 degrees F.
- Whisk the egg mixture once more, then pour over the potatoes in the casserole dish.
- Bake at 350 for 45-55 minutes. It is done when bubbly, when the edges start to brown and the center doesn’t wiggle when you shake the pan.
- If the center of the casserole looks very wobbly but the top is starting to brown too much, cover with foil for the last few minutes of baking.
Video
Notes
Nutrition
Blast from the past
Here’s the old picture of our favorite Christmas breakfast casserole (sans broken glass):
And I’ll keep my old musings from back in 2012, as well:
Eric and I are always arguing about the lights in our house. (It has nothing to do with the electricity bill, which is what my parents were always yelling at me about.) I like to be able to see what I’m doing. Eric likes ambiance, which means lamplight only. This is great if you have lots of lamps. Bring on the ambiance, I say, if you have enough lamps.
But we don’t. So I always get into trouble when I walk into the kitchen and flip the lights on (to see what I’m doing) and I’m always moaning to Eric that I feel like I live in the 14th century or something.
The addition of the Christmas tree has decreased contention in our home considerably. Eric loves the extra ambiance. I love Christmas. (It makes me feel more goodwill toward men, i.e., less likely to complain about living in a cave.) It’s a win-win.
I think the moral of the story here is that Christmas solves all problems.
This was crazy delicious! This recipe provided the protein I was looking for with the hash browns my boys love! Made it for some company over Christmas and it was a hit with everyone!
That’s awesome Sue! I’m so glad everyone loved it! That’s the best. Thanks so much for coming back to comment!!
Karen, thank you so much for this recipe! I had to convince my family to try it since they are very happy with our usual breakfast casserole but when I made it they were converts. I only make the casserole for special occasion morning but this one going to be a much more frequent dish. We all loved it so much.
Hooray, I’m so glad it was a hit for everyone Kendra! Casserole for breakfast is usually a special occasion thing for us too, but I don’t know why. I should just portion it out for the rest of the week! Make myself happy every morning! ;)
I made two of these for family breakfast (for 20) on my wife’s birthday. I used disposable 9 x 13 lasagna pans, which I recommend.
For one, I used the leftovers of a spiral sliced ham, added a few green onions and some yellow peppers. The other, I fried up some Jimmy Dean Breakfast Sausage (hot) and drained the fat. Oddly enough, the “hot” sausage didn’t have much of a kick, and it was a little drier than the spiral ham. The ham casserole turned out to be the juicier (read: more fat) of the two. I would make either, or both, again. Today, the new year’s diet begins (ugh).
New years diets, ugh I hear you. But I’m so glad you enjoyed the casserole recipe! I’m surprised the sausage one was more dry, that’s good to know. Thanks for the detailed review!
Wow! Easy, yummy and I even got asked for the recipe before brunch was over!
That’s the best, right Sue? :) Thanks! I’m so glad you liked it.
How do you think this would work if I added spinach? Trying to get some vegetables in to Christmas morning!
I think that sounds delicious Marisa!! Do it! You could either do frozen spinach (thawed and well squeezed) or toss some fresh in underneath the cheese.
Instead of evaporated milk I used heavy cream. Is that going to turn out?
Absolutely Nicole! Perfect substitution! Enjoy :)
Thanks for sharing all of your great recipes! I always look forward to your posts and trying out out your recipes. I’m definitely a big fan of yours! :)
Well thank you so much Yvonne! You totally made my day! I’m so happy to hear you are enjoying the recipes. Thank you for commenting, it makes my day so much brighter!
I am with you, more light please! Always!
Breakfast casseroles that stay overnight in the fridge are perfect for the holidays; yum! Thanks for the shout-out for my broccoli cheese breakfast casserole too.
It looks like the casserole version of broccoli cheese soup, how could this go wrong?? :) Thanks Kalyn!
Made this tonight. Had some white potatoes, some deli ham, and some eggs that all needed to be used. Only had 22oz of potatoes after hand shredding and pressing as much water out of them as possible. Used 7 eggs and 3/4 cup half and half rather than 6 and 1 cup cream/evaporated milk.
Turned out AMAZING. This is going to be a go-to recipe for breakfasts and probably family gatherings too. Thank you for the recipe!
Hey Jeff! I’m so glad you liked it. I just made this yesterday and did a reshoot, I’ll be posting the photos soon. Thanks for the tips and for commenting with a review! It’s been my favorite breakfast casserole for years now.
I am with Eric on this one. Overhead lights are good for kitchen and bathroom and if you really need to see. If I am in the bed reading with my book and book light and bedside lamp….don’t come in room and flip on overhead light. You can adjust your eyes……can you make this recipe ahead either cooked or uncooked and freeze it. Thanks
Sybil it’s funny, you know what they say about couples turning into each other over the years…I think I’m starting to become a low lights person myself. He’s finally won out! Haha! About the casserole, I have never tried freezing but that’s a good idea. I think I would freeze after baking, let thaw on the counter for an couple hours, and then bake at 350. It will take longer and I don’t have times to give you, but start at one hour and see how it does from there.
After all the breakfast casseroles I have tired in the past, (and failed) this one surpasses them all. My family loved it and asked for more! Thank you.
YAY! This is my favorite breakfast casserole, hands down! I’m so glad you and your family loved it too! Thanks for sharing!
I really like this method!! I used fresh potatoes and added a small shredded onion. I baked the potatoes and onion with the butter about 45 minutes, stirring halfway through. I haven’t served it yet, but after tasting the potatoes, which are delicious on their own, I know it’s gonna be good. I can see using this method to cook hash browns then finish them on the griddle.
Hey Christa! That’s genius! I feel like whenever I make hashbrowns on the stovetop they get dried out. I’m totally trying this method next time! Hope you like the casserole, it’s a favorite of mine! :)
I make a lot of hash brown casseroles & use the pre-cooked patties, shredding them by hand. This eliminates the step of cooking the shredded kind or using them raw in a recipe, which doesn’t lend much flavor.
Great tip Sam! Thanks!
Easy and looks tasty.. However, suggest a Vegetarian substitute.. M a vegan :p
Hi Shruti! I’m not sure this is the best recipe for you if you are vegan! It has butter, cheese, ham, eggs, and milk, none of which are vegan. Maybe try googling “vegan breakfast casserole.” Good luck!
why do men like living in caves? i’ve noticed as time passes that i want even MORE light, and the otherwise reasonable man i’m married to seems to want to exist only by the light of the computer…
I don’t want to live in a cave. I want to live in a comfortable wood paneled study with dark walls, shelves of books, and plenty of lamps. Overhead light is death.
Wow, you are sounding just like Mom with the overhead light.
I agree with Eric. I like only lamplight. But then I used to have a lot of lamps. (Recently all my household goods were either stolen or thrown away by my apt. office. Many were in a storage closet.)
Overhead light gives me headaches or makes me sleepy. ESPECIALLY fluorescent lighting.
Dear, it’s not men. It’s what makes you feel good. I like indirect lighting, myself.
I hate overhead lighting. It’s garish. When I was a kid, I had a lamp in my room and I love the low light- easier on my eyes. Well, if I was in trouble, my parents would open my bedroom door, snap on the overhead light and grill me or whup me. So the overhead light thing is linked to negative experiences and feeling.
Oh man I can see why you don’t like overhead lighting! It’s all about the ambiance :)