This Cheesy Sausage Breakfast Casserole is a dream come true for busy mornings and hungry crowds. It’s a one-dish wonder that brings together savory sausage, fluffy eggs, and a generous helping of cheese for a satisfying and fuss-free breakfast or brunch.
Key Ingredients for Cheesy Sausage Breakfast Casserole:
- 1 pound bulk breakfast sausage
- 1 medium onion, chopped
- 1 red bell pepper, chopped (optional, for color and flavor)
- 1 teaspoon garlic powder
- 12 large eggs
- 1/2 cup milk (any kind)
- 1 cup shredded cheddar cheese
- 1 cup shredded Monterey Jack cheese (or a Mexican blend)
- Salt and freshly ground black pepper to taste
- 2 tablespoons butter or cooking spray for greasing the pan
How to Make Cheesy Sausage Breakfast Casserole:
Get ready for an incredibly easy and utterly delicious breakfast experience. This casserole is a testament to comfort food that’s both satisfying and simple to prepare, featuring a rich, creamy texture and a burst of savory flavors. With just under an hour from start to finish, it’s perfect for weekend brunches or even a make-ahead weekday treat.
Step-by-Step Instructions:
- Preheat and Prepare: Preheat your oven to 375°F (190°C). Generously grease a 9×13 inch baking dish with butter or cooking spray to prevent sticking.
- Cook the Sausage and Veggies: In a large skillet over medium-high heat, cook the bulk breakfast sausage, breaking it up with a spoon, until browned and cooked through. If your sausage is particularly fatty, carefully drain off most of the excess grease. Add the chopped onion and red bell pepper (if using) to the skillet with the cooked sausage. Cook, stirring occasionally, until the vegetables are softened, about 5-7 minutes. Stir in the garlic powder and cook for another minute until fragrant.
- Assemble the Base: Spread the cooked sausage and vegetable mixture evenly over the bottom of the prepared baking dish. This forms the flavorful foundation of your casserole.
- Whisk the Eggs: In a large bowl, whisk together the 12 large eggs and 1/2 cup of milk until well combined and slightly frothy. Season generously with salt and freshly ground black pepper. Don’t be shy with the seasoning here; it will permeate the entire casserole.
- Add the Cheese: Sprinkle about half of the shredded cheddar cheese and half of the shredded Monterey Jack cheese over the sausage and vegetable mixture in the baking dish.
- Pour the Egg Mixture: Carefully and evenly pour the whisked egg and milk mixture over the sausage and cheese layer in the baking dish. Ensure the liquid coats the entire surface.
- Top with Remaining Cheese: Sprinkle the remaining cheddar and Monterey Jack cheese evenly over the top of the egg mixture. This will create a glorious, melty cheese crust.
- Bake the Casserole: Place the baking dish in the preheated oven. Bake for 30-40 minutes, or until the eggs are set and the top is golden brown and bubbly. You can check for doneness by gently pressing the center of the casserole; it should spring back slightly.
- Rest Before Serving: Once baked, remove the casserole from the oven and let it rest for 5-10 minutes before slicing and serving. This allows the casserole to set up properly, making it easier to cut into neat portions.
Why You’ll Love This Cheesy Sausage Breakfast Casserole:
You’ll adore this Cheesy Sausage Breakfast Casserole because it’s a truly crowd-pleasing masterpiece, offering a hearty and comforting start to any day. The star players here – savory sausage and a perfectly cheesy, custardy egg base – create a symphony of flavors and textures that’s far more delightful than a simple pancake or waffle. Plus, making this at home is incredibly budget-friendly compared to ordering brunch, saving you money without compromising on taste. The delightful combination of melty cheese and perfectly cooked sausage makes this a standout dish, a warm embrace in every forkful.
Whether you’re hosting a leisurely weekend brunch or need a quick, filling meal on a busy weekday, this casserole delivers. Impress your loved ones with minimal effort and maximum flavor, or simply treat yourself to a breakfast that feels like a special occasion. Don’t wait – gather your ingredients and try this fantastic Cheesy Sausage Breakfast Casserole today; you, and your taste buds, will be so glad you did!
Storing and Reheating Tips:
- Refrigeration: Allow the Cheesy Sausage Breakfast Casserole to cool completely. Once cooled, cover the baking dish tightly with plastic wrap or aluminum foil, or portion it into airtight containers. It will stay fresh in the refrigerator for up to 3-4 days.
- Reheating Individual Portions: For a single serving, place a slice of casserole on a microwave-safe plate and microwave on high for 60-90 seconds, or until heated through. You can also reheat in a toaster oven or a conventional oven at 350°F (175°C) for about 10-15 minutes, or until warmed through.
- Reheating Larger Portions: For larger amounts, reheat the casserole in a preheated oven at 350°F (175°C) for 15-25 minutes, or until heated through. You may want to cover it with foil for the first part of reheating to prevent the top from over-browning.
- Freezing: This casserole freezes exceptionally well. You can either freeze the entire cooled casserole or freeze individual portions in freezer-safe containers or bags. Wrap portions tightly to prevent freezer burn. Frozen casserole will keep for up to 2-3 months.
- Thawing and Reheating from Frozen: Thaw the casserole overnight in the refrigerator before reheating. Then, follow the reheating instructions for refrigerated portions. For reheating directly from frozen, it will take longer; you may need to reheat it at a slightly lower temperature for a longer duration, checking for warmth throughout.
Final Thoughts:
This Cheesy Sausage Breakfast Casserole is the perfect blend of convenience and deliciousness, making your mornings brighter and your taste buds happier. Give this recipe a try and discover how easy it is to create a memorable breakfast that’s sure to become a family favorite!
try also :
- Air Fryer Sweet Potatoes
- Crockpot Beef Fajitas
- Ground Turkey Sweet Potato Bake
- Cheesy Pumpkin Stuffed Pretzel Bites
- Find more in Pinterest
- Medium

Cheesy Sausage Breakfast Casserole
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Generously grease a 9×13 inch baking dish with butter or cooking spray to prevent sticking.2 tablespoons butter or cooking spray
- In a large skillet over medium-high heat, cook the bulk breakfast sausage, breaking it up with a spoon, until browned and cooked through. If your sausage is particularly fatty, carefully drain off most of the excess grease. Add the chopped onion and red bell pepper (if using) to the skillet with the cooked sausage. Cook, stirring occasionally, until the vegetables are softened, about 5-7 minutes. Stir in the garlic powder and cook for another minute until fragrant.1 pound bulk breakfast sausage, 1 medium onion, 1 medium red bell pepper, 1 teaspoon garlic powder
- Spread the cooked sausage and vegetable mixture evenly over the bottom of the prepared baking dish. This forms the flavorful foundation of your casserole.
- In a large bowl, whisk together the 12 large eggs and 1/2 cup of milk until well combined and slightly frothy. Season generously with salt and freshly ground black pepper. Don’t be shy with the seasoning here; it will permeate the entire casserole.12 large eggs, 1/2 cup milk, to taste salt, to taste freshly ground black pepper
- Sprinkle about half of the shredded cheddar cheese and half of the shredded Monterey Jack cheese over the sausage and vegetable mixture in the baking dish.1 cup shredded cheddar cheese, 1 cup shredded Monterey Jack cheese
- Carefully and evenly pour the whisked egg and milk mixture over the sausage and cheese layer in the baking dish. Ensure the liquid coats the entire surface.
- Sprinkle the remaining cheddar and Monterey Jack cheese evenly over the top of the egg mixture. This will create a glorious, melty cheese crust.1 cup shredded cheddar cheese, 1 cup shredded Monterey Jack cheese
- Place the baking dish in the preheated oven. Bake for 30-40 minutes, or until the eggs are set and the top is golden brown and bubbly. You can check for doneness by gently pressing the center of the casserole; it should spring back slightly.
- Once baked, remove the casserole from the oven and let it rest for 5-10 minutes before slicing and serving. This allows the casserole to set up properly, making it easier to cut into neat portions.