This recipe is mine, but I found the basic idea for it in a recent Food Network magazine.
Make Ahead Eggs for a Crowd - https://finalstockalert.com/make-ahead-scrambled-eggs-recipe/%3C/em%3E%3C/p%3E%3C/div%3E%3C/div%3E%3Cscript%3Ewindow.wprm_recipes = {"recipe-28086":{"type":"food","name":"Make Ahead Eggs for a Crowd","slug":"wprm-make-ahead-eggs-for-a-crowd","image_url":"https:\/\/thefoodcharlatan.com\/wp-content\/uploads\/2017\/08\/IMG_6745-e1502957579895.jpg","rating":{"count":84,"total":407,"average":4.85,"type":{"comment":13,"no_comment":0,"user":71},"user":0},"ingredients":[{"uid":0,"amount":"24","unit":"large","name":"eggs","notes":"","unit_id":4729,"id":831,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"24","unit":"large","unitParsed":"large"}}},{"uid":2,"amount":"1","unit":"cup","name":"milk","notes":"cream, or half and half","unit_id":4728,"id":981,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"cup","unitParsed":"cup"}}},{"uid":4,"amount":"2 & 1\/2","unit":"teaspoons","name":" kosher salt","notes":"","unit_id":4730,"id":805,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"2 & 1\/2","unit":"teaspoons","unitParsed":"teaspoons"}}},{"uid":6,"amount":"1","unit":"teaspoon","name":"black pepper","notes":"","unit_id":4724,"id":806,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":8,"amount":"1\/2","unit":"teaspoon","name":"garlic powder","notes":"","unit_id":4724,"id":1087,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":10,"amount":"1\/2","unit":"teaspoon","name":"onion powder","notes":"","unit_id":4724,"id":891,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":12,"amount":"1\/2","unit":"teaspoon","name":"mustard powder","notes":"","unit_id":4724,"id":3461,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":14,"amount":"1","unit":"teaspoon","name":"seasoning salt","notes":"","unit_id":4724,"id":890,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":16,"amount":"1\/4","unit":"teaspoon","name":"cayenne pepper","notes":"","unit_id":4724,"id":888,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/4","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":18,"amount":"1\/2","unit":"cup","name":" butter","notes":"(1 stick)","unit_id":4728,"id":755,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"cup","unitParsed":"cup"}}},{"uid":20,"amount":"1 (8-oz)","unit":"package","name":"cream cheese","notes":"","unit_id":4896,"id":830,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1 (8-oz)","unit":"package","unitParsed":"package"}}},{"uid":22,"amount":"","unit":"","name":"green onions ","notes":"or chives, to garnish (optional)","id":856,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"","unit":"","unitParsed":""}}},{"uid":24,"amount":"","unit":"","name":"shredded cheddar cheese","notes":"to garnish","id":893,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"","unit":"","unitParsed":""}}}],"originalServings":"15","originalServingsParsed":15,"currentServings":"15","currentServingsParsed":15,"currentServingsFormatted":"15","currentServingsMultiplier":1,"originalSystem":1,"currentSystem":1,"unitSystems":[1],"originalAdvancedServings":{"shape":"round","unit":"inch","diameter":0,"width":0,"length":0,"height":0},"currentAdvancedServings":{"shape":"round","unit":"inch","diameter":0,"width":0,"length":0,"height":0}}}