Breakfast Sausage, Egg & Cheese Casserole
If you’re looking for a hearty breakfast that can feed a crowd, look no further than this Breakfast Sausage, Egg & Cheese Casserole. It’s the perfect dish for brunch gatherings, holiday mornings, or simply when you want to treat yourself to a delicious start to the day. With layers of rich breakfast sausage, fluffy scrambled eggs, and melted cheese, this casserole is a comforting and satisfying way to kick off your morning routine. Plus, it’s easy to prepare and can be made ahead of time, making it a go-to recipe for busy mornings.
What Sets This Recipe Apart

This Breakfast Sausage, Egg & Cheese Casserole stands apart from other breakfast dishes due to its layers of flavor and texture. The combination of Italian bread gives it a delightful chewiness, while the breakfast sausage adds a savory punch. The blend of Swiss and cheddar cheese creates a creamy, melty goodness that envelops the eggs. It’s a dish that can be customized with your favorite ingredients—think of adding veggies or varying the types of cheese. It’s versatile, filling, and sure to become a family favorite!
Ingredients at a Glance
- 9 eggs – The base of the casserole, providing protein and richness.
- 9 slices of Italian bread (about an inch thick, crusts removed, cubed) – This forms the foundation of the casserole.
- 1 pound (453.59g) breakfast sausage – Adds savory flavor and texture.
- 1 cup (81g) shredded Swiss cheese – For a creamy, nutty flavor.
- 1 cup (84.75g) shredded cheddar cheese – Provides a sharp kick and melty goodness.
- 1 cup (183ml) milk – Adds moisture and helps bind the ingredients.
- 1.5 teaspoons salt – Enhances the overall flavor.
Must-Have Equipment
- Large mixing bowl – For whisking the eggs and combining ingredients.
- Skillet or frying pan – To cook the breakfast sausage until browned.
- 9×13 inch baking dish – Perfect size for baking the casserole.
- Whisk – For beating the eggs until fluffy.
- Spatula – To mix ingredients and spread them evenly in the baking dish.
Make Breakfast Sausage, Egg & Cheese Casserole: A Simple Method

Step 1: Prepare the Sausage
Start by heating a skillet over medium heat. Add the breakfast sausage, breaking it apart with a spatula as it cooks. Sauté it until it’s browned and fully cooked, typically about 5-7 minutes. Once done, drain any excess fat and set aside to cool slightly.
Step 2: Whisk the Eggs
In a large mixing bowl, crack the 9 eggs and whisk them until they are well beaten. Pour in the milk and add the salt, whisking everything together until smooth and combined.
Step 3: Combine the Ingredients
In the same bowl, add the cooked sausage, cubed Italian bread, and both types of cheese. Gently fold everything together until the bread is fully coated in the egg mixture and the ingredients are evenly distributed.
Step 4: Transfer to Baking Dish
Preheat your oven to 350°F (175°C). Grease your 9×13 inch baking dish with a little oil or cooking spray. Pour the mixture into the prepared dish, spreading it out evenly with your spatula.
Step 5: Bake the Casserole
Once your oven is preheated, place the baking dish in the oven and bake for 30-35 minutes, or until the eggs are set and the top is golden brown. You can check for doneness by inserting a knife in the center; it should come out clean.
Step 6: Cool & Serve
Once baked, remove the casserole from the oven and let it cool for about 5-10 minutes. This will help it set a bit more and make it easier to cut into squares. Serve warm, and enjoy this delightful Breakfast Sausage, Egg & Cheese Casserole with your favorite breakfast sides!
Budget & Availability Swaps

- Sausage: You can use turkey sausage or a plant-based sausage for a lighter or vegetarian option.
- Bread: Any type of bread works well, such as sourdough or whole wheat, if Italian bread is unavailable.
- Cheese: Feel free to substitute with mozzarella or pepper jack cheese for a different flavor.
- Milk: Almond milk or oat milk can be used as a dairy-free alternative.
Avoid These Mistakes
- Don’t skip the step of removing the crusts from the bread, as this helps the casserole achieve a better texture.
- Ensure your ingredients are at room temperature before baking; this helps everything cook evenly.
- Be careful not to overbake the casserole, as this can lead to a dry texture.
- Let the casserole cool slightly before slicing to prevent it from falling apart.
Make-Ahead & Storage
This Breakfast Sausage, Egg & Cheese Casserole is perfect for make-ahead meals. You can prepare the mixture the night before and store it in the refrigerator overnight. In the morning, simply pop it in the oven and bake as directed. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. You can also freeze individual portions for up to 2 months—just reheat in the microwave or oven when ready to enjoy!
Troubleshooting Q&A
What if my casserole is too soggy?
If your casserole turns out soggy, it may be due to using bread that absorbs too much moisture. Ensure you are using slightly stale bread or toast the cubes lightly before mixing them in.
Can I add vegetables to the casserole?
Absolutely! Diced bell peppers, onions, or spinach can be added for extra flavor and nutrition. Just sauté them with the sausage to soften before mixing them in.
How do I know when the casserole is done?
The casserole is done when the eggs are set and the top is golden brown. A toothpick or knife inserted into the center should come out clean.
Can I make this casserole without sausage?
Yes! You can easily omit the sausage and replace it with sautéed vegetables or cooked bacon for different flavors. A vegetarian version is just as delicious!
Keep Cooking
- For more delicious breakfast ideas, check out Sally’s Baking Addiction.
- Explore hearty brunch options at Pinch of Yum.
- For vegan alternatives, visit Minimalist Baker.
- Try out different casserole recipes at Food Network.
Ready to Cook?
Now that you have all the information you need to whip up this delicious Breakfast Sausage, Egg & Cheese Casserole, it’s time to gather your ingredients and get cooking! This dish is not only easy to make but also incredibly satisfying, ensuring that your morning starts off right. Whether it’s a special occasion or just a regular Tuesday, this casserole will bring a smile to your face. Enjoy every bite and share the joy with family and friends!

Breakfast Sausage, Egg & Cheese Casserole
Ingredients
Equipment
Method
- Start by heating a skillet over medium heat. Add the breakfast sausage, breaking it apart with a spatula as it cooks. Sauté it until it’s browned and fully cooked, typically about 5-7 minutes. Once done, drain any excess fat and set aside to cool slightly.
- In a large mixing bowl, crack the 9 eggs and whisk them until they are well beaten. Pour in the milk and add the salt, whisking everything together until smooth and combined.
- In the same bowl, add the cooked sausage, cubed Italian bread, and both types of cheese. Gently fold everything together until the bread is fully coated in the egg mixture and the ingredients are evenly distributed.
- Preheat your oven to 350°F (175°C). Grease your 9x13 inch baking dish with a little oil or cooking spray. Pour the mixture into the prepared dish, spreading it out evenly with your spatula.
- Once your oven is preheated, place the baking dish in the oven and bake for 30-35 minutes, or until the eggs are set and the top is golden brown. You can check for doneness by inserting a knife in the center; it should come out clean.
- Once baked, remove the casserole from the oven and let it cool for about 5-10 minutes. This will help it set a bit more and make it easier to cut into squares. Serve warm.
Notes
- This casserole can be made ahead of time and stored in the refrigerator overnight.
- Feel free to customize with your favorite veggies or cheese types.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
