I love making my Sausage and Cheese Casserole because each bite bursts with savory flavor. I combine hearty breakfast sausage, large eggs, and whole milk with sharp cheddar, day-old bread, diced onion, and green bell pepper to create a layered dish that never fails to brighten my morning.

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I recently discovered this Ultimate Savory Breakfast Sausage & Cheese Casserole and let me tell you, it’s quickly become my favorite to whip up on a lazy weekend. I love how its blend of hearty breakfast sausage, 10 fresh large eggs, and a cup of whole milk creates a mix that is both satisfying and simple.

With 2 cups of shredded sharp cheddar, cubed day old bread, diced yellow onion, and green bell pepper tucked in there, every bite is full of flavor and texture. I tossed in a sprinkle of garlic powder, salt and black pepper for that extra kick that elevates this dish from an ordinary breakfast egg sausage casserole to something really special.

Whether you’re into a sausage cheese casserole or prefer a ground sausage breakfast casserole, you’ll appreciate the care in every layer of this savory mix. Try it out and enjoy a breakfast that leaves you curious about each delicious bite.

Why I Like this Recipe

1. I really like how hearty and comforting this recipe is – the combination of sausage, eggs, and melty cheddar just makes me feel ready to tackle the day.
2. I love how easy it is to put together, even when I’m in a rush – it’s perfect for a quick brunch or even meal-prepping for the week.
3. I enjoy the mix of flavors from the veggies and seasonings; the pepper and garlic powder give it that extra kick that keeps things interesting.
4. I appreciate the balance between a crispy top and a soft, gooey middle – it’s like the best of both worlds and always hits the spot.

Ingredients

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Savory protein source enhancing flavor and providing hearty breakfast comfort.
Eggs supply high quality protein and healthy fats for energy and satiety.
Rich creamy milk adds moisture and essential calcium, making the dish luscious.
Cheddar provides tangy flavor and extra protein, elevating the casserole’s taste.
Stale bread cubes absorb rich flavors while adding satisfying texture and carbs.
Onions contribute mild sweetness and crunch; also pack vitamins and antioxidants.
Bell peppers add a refreshing, mildly sweet crunch and vibrant color to brighten dishes.
Garlic, salt, and pepper seasonings add subtle warmth and balanced flavor throughout the dish.

Ingredient Quantities

1 lb breakfast sausage (casings removed if using links)

10 large eggs

1 cup whole milk

2 cups shredded sharp cheddar cheese

1 cup cubed day old bread

1/2 cup diced yellow onion

1/2 cup diced green bell pepper

1/2 tsp garlic powder

1/2 tsp salt

1/4 tsp black pepper

How to Make this

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1. Preheat your oven to 350°F and grease a 9×13 inch casserole dish.

2. In a large skillet, crumble and cook the breakfast sausage over medium heat until it’s browned; drain off any extra fat.

3. In a big mixing bowl, beat 10 eggs with 1 cup whole milk, then stir in 1/2 teaspoon garlic powder, 1/2 teaspoon salt, and 1/4 teaspoon black pepper.

4. Add 1 cup cubed day old bread, 1/2 cup diced yellow onion, and 1/2 cup diced green bell pepper to the egg mixture.

5. Mix in the cooked sausage and 2 cups shredded sharp cheddar cheese until everything is well combined.

6. Pour the entire mixture into the prepared casserole dish and spread it out evenly.

7. Bake in the preheated oven for 30 to 35 minutes, or until the eggs are set and the top looks slightly golden.

8. Let the casserole cool for a few minutes before cutting into squares and serving. Enjoy!

Equipment Needed

1. Oven – Needed for preheating to 350°F to bake the casserole so the eggs get set nicely
2. 9×13 inch casserole dish – Greased and used to hold the mixture for baking
3. Large skillet – Used for browning the breakfast sausage over medium heat
4. Big mixing bowl – For beating eggs with whole milk and mixing in spices, bread, vegetables, sausage and cheese
5. Whisk or fork – Ideal for beating the eggs into a smooth mixture
6. Measuring cups and spoons – Essential for measuring whole milk, garlic powder, salt and pepper accurately
7. Knife and cutting board – Needed for dicing the yellow onion and green bell pepper, and to cube the day-old bread
8. Spatula – Useful for stirring the sausage and mixing all the ingredients evenly in the bowl

FAQ

Can I substitute a different type of cheese?

Yeah, you can use monterey jack or even mozzarella if you prefer a milder taste. Cheddar really gives it that sharp kick, but mix it up if you like variety.

I don't have any day old bread. What can I do?

No worries, you can lightly toast some fresh bread until its a bit dry. Then cube it so it soaks up all the eggy flavor during baking.

Can I prepare this casserole the night before?

Sure can, just mix everything together and cover it up in the fridge overnight. Just add a few extra minutes in the oven in the morning to make sure its all hot and bubbly.

Is it ok to use a different kind of sausage like turkey sausage?

Absolutely, turkey or chicken sausage works fine. The flavor changes a little bit but it’s still pretty tasty.

How should I reheat leftovers?

The best bet is to pop a portion in the microwave for about one to two minutes, or heat in the oven at 350°F until its warmed through. Just watch it so it doesn't dry out.

Ultimate Savory Breakfast Sausage & Cheese Casserole Recipe Substitutions and Variations

Try swapping the breakfast sausage with turkey sausage or even a plant-based version if you’re looking for a leaner twist
If you dont have whole milk, you can use 2% milk or even almond milk for a different flavor
Instead of sharp cheddar cheese, Monterey Jack or Colby cheese work really well
Use any type of day-old bread like toasted baguette pieces if you dont have your regular cubed bread
You can switch out diced yellow onion with red onion for a slight change in flavor

Pro Tips

1. For the sausage, make sure you break it up well and cook it completely so you get that nice browned flavor. If there’s too much grease, drain it off – it helps keep the casserole from being too oily.

2. Toasting the bread cubes in a pan with a bit of butter before you mix them in can add a cool crunch and extra flavor. It also helps the bread not to get too mushy when it bakes.

3. Letting the mixture sit for a few minutes after mixing the ingredients can really bring the flavors together. Trust me, this step makes a difference when it comes to a balanced taste.

4. When you bake it, check it a couple minutes before the timer goes off. Ovens run differently, and you want to avoid overcooking the eggs. Your casserole will come out creamy and flavorful.

Ultimate Savory Breakfast Sausage & Cheese Casserole Recipe

Recipe by Francis Mead

0.0 from 0 votes

Servings

servings

Calories

420

kcal

Equipment: 1. Oven – Needed for preheating to 350°F to bake the casserole so the eggs get set nicely
2. 9×13 inch casserole dish – Greased and used to hold the mixture for baking
3. Large skillet – Used for browning the breakfast sausage over medium heat
4. Big mixing bowl – For beating eggs with whole milk and mixing in spices, bread, vegetables, sausage and cheese
5. Whisk or fork – Ideal for beating the eggs into a smooth mixture
6. Measuring cups and spoons – Essential for measuring whole milk, garlic powder, salt and pepper accurately
7. Knife and cutting board – Needed for dicing the yellow onion and green bell pepper, and to cube the day-old bread
8. Spatula – Useful for stirring the sausage and mixing all the ingredients evenly in the bowl

Ingredients

1 lb breakfast sausage (casings removed if using links)
10 large eggs
1 cup whole milk
2 cups shredded sharp cheddar cheese
1 cup cubed day old bread
1/2 cup diced yellow onion
1/2 cup diced green bell pepper
1/2 tsp garlic powder
1/2 tsp salt
1/4 tsp black pepper

Directions

Preheat your oven to 350°F and grease a 9×13 inch casserole dish.
In a large skillet, crumble and cook the breakfast sausage over medium heat until it's browned; drain off any extra fat.
In a big mixing bowl, beat 10 eggs with 1 cup whole milk, then stir in 1/2 teaspoon garlic powder, 1/2 teaspoon salt, and 1/4 teaspoon black pepper.
Add 1 cup cubed day old bread, 1/2 cup diced yellow onion, and 1/2 cup diced green bell pepper to the egg mixture.
Mix in the cooked sausage and 2 cups shredded sharp cheddar cheese until everything is well combined.
Pour the entire mixture into the prepared casserole dish and spread it out evenly.
Bake in the preheated oven for 30 to 35 minutes, or until the eggs are set and the top looks slightly golden.
Let the casserole cool for a few minutes before cutting into squares and serving. Enjoy!

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.