Rating: 4.5 stars 4.6
2132 Ratings
  • 5 star values: 1514
  • 4 star values: 449
  • 3 star values: 129
  • 2 star values: 28
  • 1 star values: 12

My mom has always made this cheesy sausage casserole for us on Christmas morning, and we look forward to eating it every year. It is so delicious, and everyone enjoys it! You can use croutons instead of making toast, and sage sausage for a different flavor.

Recipe Summary

20 mins
1 hr 30 mins
8 hrs
9 hrs 50 mins

Make the holiday morning breakfast extra special with this delicious breakfast sausage casserole. The entire casserole is assembled the night before, so all you'll need to do on Christmas morning is pop it in the oven (and it'll be done by the time everyone is finished opening their presents)!

How to Make Breakfast Sausage Casserole

The full, simple recipe can be found below — but here's a peek into what you can expect when making this breakfast sausage casserole: 

Brown the sausage and drain the excess grease. In a bowl, combine the mustard powder, egg, salt, and milk. Then add the cooked sausage, bread, and cheese. Pour into a baking dish and store covered in the refrigerator overnight (or at least 8 hours). Bake until eggs are set and the casserole is warmed through.

How Long to Cook Breakfast Sausage Casserole

We recommend following this recipe's bake time. You'll first bake the covered casserole for 45 to 60 minutes. Then, uncover it, reduce the temperature, and continue cooking until the casserole is warmed through and the eggs are set, about 30 minutes.

What to Serve With Breakfast Sausage Casserole

This breakfast sausage casserole is pretty filling on its own, so you don't need to worry about any sides. But, if you like having extra options at your table, then you can serve it alongside a light side, like fresh fruit or yogurt.

How to Store Breakfast Sausage Casserole

Store any leftovers in the fridge for up to five days. Reheat in the microwave or oven until warmed through.

How to Freeze Breakfast Sausage Casserole

This casserole is a great freezer meal. Wrap the baked casserole (dish and all) in a layer of storage wrap then a layer of aluminum foil. You may want to use a disposable casserole dish for easy freezing — or freeze the casserole in individual portions in zip-top freezer bags. 

Freeze for up to three months. Defrost in the fridge overnight, then bake in the oven until warmed through.

Allrecipes Community Tips and Praise

"My family loves this and the casserole has now become a traditional menu item for Christmas morning...I used Jimmy Dean's hot sausage to give it some spice," raves justcookin.

"My kids don't like too many different ingredients, so I chose this recipe for the simplicity of what goes in it. It was a hit! Not too often do I get all three kids to eat what I make from scratch (I'm a great cook, just weird kids), but everyone went back for second helpings," according to Angie Frederick.

"OK, so I'm not a big egg casserole fan...but this was really really good! It was so easy, the only change I made was to use 6 eggs and did not add the dry mustard. Assembled the night before and just popped it in the oven that morning. Looking forward to making it again. GREAT RECIPE," says 2010.

Editorial contributions by Bailey Fink


Original recipe yields 8 servings
The ingredient list now reflects the servings specified
Ingredient Checklist


Instructions Checklist
  • Crumble sausage into a medium skillet. Cook over medium heat until evenly brown; drain.

  • In a medium bowl, mix together mustard powder, salt, eggs and milk. Add the sausage, bread cubes, and cheese, and stir to coat evenly. Pour into a greased 9x13 inch baking dish. Cover, and chill in the refrigerator for 8 hours, or overnight.

  • Preheat oven to 350 degrees F (175 degrees C).

  • Cover, and bake 45 to 60 minutes. Uncover, and reduce temperature to 325 degrees F (165 degrees C). Bake for an additional 30 minutes, or until set.

Nutrition Facts

377 calories; protein 21.5g; carbohydrates 13.4g; fat 26g; cholesterol 160.1mg; sodium 1015.4mg. Full Nutrition