Easy Sausage and Egg Casserole is a simple and satisfying dish that combines savory sausage, fluffy eggs, and melty cheese into one hearty meal. It’s perfect for breakfast, brunch, or even a cozy dinner. The best part is how easy it is to whip up and how well all the flavors blend together in a warm, comforting casserole.
I love making this casserole on weekend mornings when I want something filling but don’t want to spend too much time cooking. You can prepare it the night before and pop it into the oven the next morning. Plus, it’s super versatile—you can add your favorite veggies or swap the cheese for whatever you have on hand. Every time I make it, my family asks for seconds, which says a lot!
When I serve this dish, I usually pair it with a fresh green salad or some crusty toast, which balances out the richness of the sausage and eggs nicely. It’s also fantastic for feeding a crowd because you can make a big pan and everyone can help themselves. This casserole always makes me feel cozy and happy, especially when shared around the table with loved ones.
Key Ingredients & Substitutions
Sausage: Breakfast sausage adds great flavor and some spice. You can swap with Italian sausage or even turkey sausage for a lighter option. Just make sure to cook it fully before adding.
Eggs: Eggs are the base and binder for this casserole. Using large eggs works best for the right texture. For dairy-free, try plant-based egg substitutes, though the texture may vary.
Milk: Milk helps make the casserole creamy. Use whole milk for richness, but skim or plant-based milk like almond or oat can work if you want less fat or follow dairy-free diets.
Cheese: Cheddar and mozzarella give flavor and gooeyness. Feel free to use your favorite cheese—Swiss, Monterey Jack, or Colby work well too. For a sharper taste, add a bit of Parmesan.
How Do I Make Sure the Casserole Cooks Evenly and Sets Right?
Even cooking is key so the eggs set without becoming rubbery. Follow these tips:
- Grease the pan well to prevent sticking and promote even browning.
- Spread cooked sausage evenly to avoid clumps and help the eggs cook uniformly.
- Whisk eggs and milk thoroughly to combine air and ensure a smooth, fluffy texture.
- Bake uncovered to allow the top to brown while the center sets.
- Check for doneness by gently shaking the pan; the center should be firm, not jiggly.
- Let it rest 5 minutes after baking so it firms up for easier slicing.
Following these steps helps make a casserole that’s moist, tender, and nicely browned on top every time.
Equipment You’ll Need
- 9×13-inch baking dish – perfect size for even cooking and easy slicing.
- Large mixing bowl – for whisking eggs and milk together smoothly.
- Whisk – helps get a nice, airy egg mixture without lumps.
- Skillet or frying pan – to cook the sausage evenly before baking.
- Spatula or wooden spoon – handy for breaking apart sausage while cooking.
Flavor Variations & Add-Ins
- Swap sausage for cooked bacon or ham for a smoky twist.
- Add diced bell peppers or spinach for some color and extra veggies.
- Use pepper jack or Swiss cheese for a different cheese flavor.
- Stir in some chopped green onions or fresh herbs to brighten the dish.
Easy Sausage and Egg Casserole
Ingredients You’ll Need:
- 1 lb (450 g) breakfast sausage or Italian sausage, casing removed
- 8 large eggs
- 1 cup (240 ml) milk
- 1 cup (100 g) shredded cheddar cheese
- 1/2 cup (50 g) shredded mozzarella cheese
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon garlic powder (optional)
- 1/2 teaspoon dried parsley or Italian seasoning
- Butter or nonstick spray, for greasing the baking dish
How Much Time Will You Need?
This casserole takes about 15 minutes to prepare and about 30 to 35 minutes to bake. Add an extra 5 minutes to let it cool before slicing and serving. You can also assemble it the night before to save time in the morning.
Step-by-Step Instructions:
1. Prepare the Sausage:
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or nonstick spray. In a skillet over medium heat, cook the sausage, breaking it up with a spoon, until browned and fully cooked. Drain any excess grease and spread the sausage evenly in the baking dish.
2. Mix Eggs and Milk:
In a large bowl, whisk together the eggs, milk, salt, black pepper, and garlic powder until everything is well mixed.
3. Assemble and Bake:
Pour the egg mixture evenly over the cooked sausage in the baking dish. Sprinkle the shredded cheddar and mozzarella cheese evenly on top. Then, sprinkle the dried parsley or Italian seasoning over the cheese for extra flavor and color. Bake uncovered for 30 to 35 minutes until the casserole is set in the middle and golden on top.
4. Cool and Serve:
Remove the casserole from the oven and let it cool for about 5 minutes. Cut into squares and serve warm. Enjoy your easy, hearty breakfast casserole!
Can I Use Frozen Sausage for This Casserole?
Yes, you can use frozen sausage, but make sure to thaw it completely before cooking. Thaw in the fridge overnight or use the defrost setting on your microwave. Cooking thawed sausage ensures even browning and prevents excess moisture in the casserole.
Can I Make This Casserole Ahead of Time?
Absolutely! You can assemble the casserole the night before, cover it tightly, and refrigerate. In the morning, bake it as directed. This makes for an easy and stress-free breakfast or brunch.
How Should I Store Leftovers?
Store any leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through. Adding a splash of milk when reheating can help keep it moist.
Can I Add Vegetables to This Recipe?
Definitely! Feel free to add diced bell peppers, spinach, mushrooms, or onions to the sausage before baking. Just sauté the veggies with the sausage first to release excess moisture and ensure they’re tender.
