Breakfast Casserole

Breakfast Casserole Recipe

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Sandy Sumner


I have been asked to make this on many occasions by family, friends, and co-workers. This is a very customizable and forgiving recipe. You can add ingredients you like or delete the ones you don't like. The most important part is the bread and egg layer and allowing the egg to be absorbed by the bread.


★★★★★ 1 vote

30 Min
45 Min


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1 lb
turkey breakfast sausage or pork sausage of your preference
onion minced or onion powder to taste
1 clove
garlic or garlic powder to taste
4 - 6 c
french bread, day old (sourdough works nicely, or combo of white & wheat breads)
eggs, beaten
1/2 c
1/2 Tbsp
brown mustard, dijon mustard, or creole mustard
optional ingredients - black olives; green or red or yellow bell peppers, mushrooms, spinach, artichokes, just about anything you would put in an omelet
2 c
shredded cheese, whatever kind you like; i like monterey jack/colby mixture

How to Make Breakfast Casserole


  • 1Chop onions and saute' with a tablespoon of oil or non-stick spray, until translucent (clear or see-through). If you are added peppers and garlic saute with the onions.
  • 2Add ground turkey and cook until all the pink is gone. Take off the heat and allow to cool. If you can pick it up with your fingers it is cool enough.
  • 3In a 9 x 13" baking dish, spray dish with non-stick spray. Mince, cube, or tear into small pieces the bread into the baking dish. The bread does not have to be rock hard but if you have bread that is too hard to eat as a sandwich, will do. Or off the reduced baked goods rack of your bakery or grocer will work nicely.
  • 4In a medium size mixing bowl, break the eggs and whisk with the milk, and mustard. (If you don't like mustard or have a vinegar allergy it can be omitted; this is a very forgiving and easy to personalize dish). You may want to substitute dry mustard; about a 1/2 teaspoon.
  • 5Over the bread add a layer of shredded cheese (I have even added Parmesan before). Layer the sausage mixture, pour egg mixture over the top of sausage and bread. Add another layer of cheese.
  • 6Cover with plastic wrap and refrigerate for at least 30 minutes or overnight.
  • 7To Bake: Preheat over to 375 degrees. Remove plastic wrap and bake for 30 - 45 minutes, until the egg and bread layer is a firm-custard like consistency.

Printable Recipe Card

About Breakfast Casserole

Course/Dish: Breakfast Casseroles
Other Tag: Quick & Easy

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