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Breakfast Casserole: Sausage + Egg Bake Recipe

Sausage Egg Bake Recipe – This overnight egg casserole is made with eggs, breakfast sausage, and cheese – all layered over hearty slices of bread. Then, it’s baked in the oven for the most epic breakfast lover’s feast! You can make this ahead of time for the perfect Christmas morning Brunch, breakfast for company, or as part of your weekly meal prep.

breakfast casserole servings stacked on plate

When it comes to family gatherings, breakfast is definitely the most overlooked meal. Forget the bagels and sugary pastries, you need a recipe that will keep everyone full until lunchtime. And this casserole is a great way to make the most delicious breakfast for a crowd. 

This is the perfect breakfast casserol for breakfast or brunch, Christmas morning, Easter, or any other special occasion.  We love to enjoy this over the holiday season with a mimosa in hand. This is one of those easy recipes that will be a family favorite!

Easy Sausage and Egg Casserole

This great recipe can certainly feed a crowd, but it’s also perfect for a nice breakfast with your family. One casserole dish serves about 8-10 people, at least. While this is perfect for larger brunches or breakfasts, this can easily be portioned out to reheat and enjoy on busy school mornings.

breakfast casserole serving on plate

Since this recipe does require sitting in your refrigerator overnight, make sure you plan ahead to make it the night before. Even with the overnight rest, it really does take the stress out of preparing breakfast the next morning.

Ingredients + Tools: Easy Breakfast Casserole 

  • Bread: Use wheat, white, or whatever you have on hand. Day-old bread is best, so it can absorb the egg and milk mixture well. 
  • Sausage: Use any breakfast sausage of your choice. I like Jimmy Dean. Mild, hot, sweet, or Italian sausage can also be used. Try Chorizo for an extra kick!
  • Cheese: A blend of sharp cheddar cheese is my personal favorite, but any shredded cheese will work. Try pepper jack, cheddar, taco blend, etc.
  • Vegetables: If you want to bulk up this recipe, add mushrooms, green bell pepper, green onions, or other vegetables in one-cup increments.
  • Proteins: This casserole is pretty hearty with the sausage crumbles, but try diced ham, ground beef, or other protein instead.
ingredients for breakfast casserole

Here are a few kitchen tools I recommend to make this recipe easier:

  • Casserole dish: I prefer a clear, glass casserole dish, but aluminum will work fine, too.
  • Disposable aluminum pan: If you want to minimize clean up, a disposable pan is the way to go! You will still need to spray your pan with cooking spray before assembling the casserole.

How to Make a Sausage and Egg Breakfast Casserole

The main ingredients to this savory breakfast casserole are bread, eggs, cheese, and sausage. These ingredients are layered in a pan together and baked the next day.

Step 1: Prep the casserole.

First, layer the bread slices in the bottom of the dish. I usually use about 8 slices of bread to cover the bottoms and sides of the casserole dish.

6 bread slices in casserole dish

Then, brown your sausage in a large skillet and drain off the grease. The sausage doesn’t need to be super finely crumbled. Just use your spoon to break apart the larger pieces of sausage into smaller, bite-sized pieces.

Add the cooked sausage on top of the bread slices, and sprinkle a layer of cheese.

Then, in a large mixing bowl, whisk the eggs and milk together. Season with salt and black pepper. Pour the egg mixture over the bread and sausage mixture. 

Use a wooden spoon to press the edges of the bread into the mixture.

uncooked breakfast casserole and wooden spoon

Step 2: Soak overnight.

Cover with foil and place the casserole dish in the refrigerator for 8 hours or up to overnight. This allows the bread to absorb the egg and milk mixture so your casserole isn’t runny.

Step 3: Bake

When you are ready to bake, let the casserole dish sit at room temperature for at least 30 minutes. This helps the ingredients cook evenly and prevents your casserole dish from shattering as it’s transferred from a cold fridge to a hot oven.

spatula serving breakfast casserole

Top the casserole with the remaining cheese, and place the uncovered casserole in the preheated oven for about an hour, or until the center no longer jiggles.

What to serve with a breakfast casserole:

breakfast casserole bite on fork

Reheating Breakfast Casserole

Overnight breakfast casserole can easily be reheated for leftovers. Cover the casserole dish with foil and place in a preheated 350F degree oven for about 20 minutes, or until warm.

Make Ahead Breakfast Casserole and Freezing Tips

Breakfast casserole can be made up to three days ahead of time and refrigerated until ready to bake. If you wish to freeze the casserole, here are two ways:

  • Uncooked: Make this ahead of time and freeze the uncooked casserole in a 9×13 inch casserole dish. Defrost in the refrigerator until completely thawed. Bake according to the directions.
  • Cooked: Divide the cooked casserole into single portions and wrap in Glad Press’n Seal. Place each serving in a gallon freezer bag, label, and place in the freezer. Defrost and reheat the unwrapped casserole in an oven-safe dish at 350F degrees for about 20 minutes, or until warm.

Breakfast Casserole FAQ:

How long can breakfast casserole sit out?

A cooked breakfast casserole can sit out for about 2 hours. After 2 hours, there is an increased chance for bacteria to breed and the casserole to dry out.

How long is egg casserole good in the fridge?

Uncooked egg casserole is good for about 3 days in the refrigerator, and then is should be cooked and served.

Cooked egg casserole is good for up to three days in the refrigerator. Then, it should be frozen or thrown out.

How do you reheat egg casserole without overcooking?

Cover the casserole dish with foil and place in a preheated 350F degree oven for about 20 minutes, or until warm.

Do egg casseroles freeze well?

Yes, you can freeze this breakfast casserole cooked, cut into portions, and wrapped with Glad Press’n Seal. Freeze up 3-6 months. 

Defrost in the refrigerator or on the counter until completely thawed. Bake according to the directions.

How long can breakfast casserole be refrigerated before cooking?

A breakfast casserole should be assembled and refrigerated for no more than 3 days before cooking.

Breakfast Casserole Recipe

Yield: 10

Easy Breakfast Casserole

breakfast casserole serving on plate

This overnight egg casserole recipe is made with eggs, breakfast sausage, and cheese - all layered over hearty slices of bread. Then, it’s baked in the oven for the most epic breakfast lover's feast! You can make this ahead of time for the perfect Christmas Morning Brunch, breakfast for company, or as part of your weekly meal prep.

Prep Time 20 minutes
Cook Time 1 hour
Ovenight Fridge Time 8 hours
Total Time 9 hours 20 minutes

Ingredients

  • Nonstick cooking spray
  • 1 pound of ground breakfast sausage
  • 6-8 slices of sandwich bread
  • 2 cups of sharp cheddar cheese, divided
  • 8 large eggs
  • 2 cups of whole milk
  • Salt & pepper to taste

Instructions

Preparing the Casserole

  1. Spray a 9x13 inch casserole dish with nonstick cooking spray. Set aside.
  2. In a large skillet, brown the sausage over medium-high heat until browned and crumbly.
  3. Arrange bread slices in a single layer in the prepared baking dish.
  4. Evenly spread the crumbled sausage and 1 cup of cheese over the bread slices. Set aside.
  5. In a large bowl, whisk together the eggs, milk, salt, and pepper. Carefully pour the mixture over the cheese, sausage, and bread in the casserole dish.
  6. Using a spoon, gently press the bread corners down into the egg and milk mixture, so the bread is fully submerged into the liquid.
  7. Cover the dish with foil and place in the refrigerator for at least 8 hours or overnight.


Baking Instructions

  1. Preheat oven to 350F. Remove the dish from the refrigerator and allow it to sit at room temperature for at least 30 minutes to avoid shattering.
  2. Top with the remaining cheese.
  3. Place uncovered casserole in the 350F preheated oven and bake until set and golden - about 60 minutes. Let stand for 10 minutes before serving. When cooked through, the casserole should not jiggle or appear runny in the middle.

Notes

  • Bread: Use wheat, white, or whatever you have on hand. Day-old bread is best, so it can absorb the egg and milk mixture well. 
  • Sausage: Use any breakfast sausage of your choice. I like Jimmy Dean. Mild, hot, sweet, or Italian sausage can also be used. Try Chorizo for an extra kick!
  • Cheese: A blend of sharp cheddar cheese is my personal favorite, but any shredded cheese will work. Try pepper jack, cheddar, taco blend, etc.
  • Vegetables: If you want to bulk up this recipe, add mushrooms, green bell pepper, green onions, or other vegetables in one-cup increments.
  • Proteins: This casserole is pretty hearty with the sausage crumbles, but try diced ham, ground beef, or other protein instead.

Make Ahead, Reheating, and Freezing Tips

  • Reheating leftovers: Cover the casserole dish with foil and place in a preheated 350F degree oven for about 20 minutes, or until warm.
  • Make ahead up to three days ahead of time and refrigerated until ready to bake.
  • Freeze Uncooked: Make this ahead of time and freeze the uncooked casserole in a 9x13 inch casserole dish. Defrost in the refrigerator until completely thawed. Bake according to the directions.
  • Freeze Cooked: Divide the cooked casserole into single portions and wrap in Glad Press’n Seal. Place each serving in a gallon freezer bag, label, and place in the freezer. Defrost and reheat the unwrapped casserole in an oven-safe dish at 350F degrees for about 20 minutes, or until warm.

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Nutrition Information:

Yield:

10

Serving Size:

1

Amount Per Serving: Calories: 487Total Fat: 34gSaturated Fat: 15gTrans Fat: 1gUnsaturated Fat: 15gCholesterol: 238mgSodium: 890mgCarbohydrates: 17gFiber: 1gSugar: 5gProtein: 28g

The nutritional information is provided as a courtesy and is an estimate generated by a calculator.

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Friday 17th of May 2019

Emily Bruno

Monday 6th of May 2019

Feeding a crowd is always a challenge- this looks perfect!

Susie

Monday 6th of May 2019

This is perfect! I am hosting Christmas and we'll need something for breakfast

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