If you’re looking for a hearty, comforting breakfast that can feed a crowd or provide delicious leftovers throughout the week, this Sausage Egg Casserole is exactly what you need. It’s a perfect blend of savory sausage, fluffy eggs, gooey cheese, and fluffy bread all baked to golden perfection. Whether you’re preparing for a weekend brunch, a holiday gathering, or simply want an easy make-ahead meal, this casserole delivers on flavor and convenience. Plus, it’s simple to customize with your favorite ingredients and can be prepped the night before.
Why This Recipe Is a Must-Try
This Sausage Egg Casserole stands out because it combines everyday ingredients into a dish that feels indulgent but is surprisingly easy to make. Unlike traditional breakfasts that require standing over the stove, this casserole is a hands-off bake that frees up your morning. The savory sausage and creamy eggs create a perfect balance, while the melted cheese adds a delightful richness. It’s also versatile, easily adaptable to suit different tastes or dietary needs. With minimal prep and maximum flavor, it’s a foolproof recipe that will quickly become a household favorite.
Ingredients
- 1 pound ground chicken or turkey sausage (use a mild or spicy sausage alternative)
- 8 large eggs
- 2 cups whole milk or any plant-based milk of your choice
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 4 cups cubed day-old bread (such as white or whole wheat, crusts removed)
- 1 1/2 cups shredded cheddar cheese (or your favorite cheese blend)
- 1/2 cup chopped green onions or chives
- Optional: 1 cup diced bell peppers or mushrooms for extra veggies
How To Make Sausage Egg Casserole
Step 1: Preheat and Prepare
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with cooking spray or butter to prevent sticking.
Step 2: Cook the Sausage
In a large skillet over medium heat, cook the ground sausage until fully browned and cooked through, about 6-8 minutes. Break it apart with a spatula as it cooks. Once done, drain any excess fat and set aside.
Step 3: Mix the Egg Base
In a large mixing bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder until thoroughly combined.
Step 4: Assemble the Casserole
Add the cubed bread, cooked sausage, shredded cheese, chopped green onions, and any optional vegetables into the egg mixture. Gently fold everything together until the bread is evenly coated.
Step 5: Transfer to Baking Dish
Pour the mixture into the prepared baking dish, spreading it out evenly.
Step 6: Bake
Bake uncovered for 45-50 minutes or until the casserole is set and the top is golden brown. A toothpick inserted into the center should come out clean.
Step 7: Cool and Serve
Allow the casserole to cool for about 10 minutes before slicing. This helps it set further and makes serving easier.
Expert Tips
- Use day-old bread for best texture as it soaks up the egg mixture without becoming mushy.
- Let the casserole rest after baking to allow it to firm up and make slicing neater.
- Feel free to swap out the sausage for a plant-based alternative if preferred.
- Adding vegetables like spinach, bell peppers, or mushrooms boosts the nutrition and adds flavor.
- For a creamier casserole, substitute half the milk with heavy cream or a creamy plant-based milk.
- To save time, cook and crumble the sausage the night before.
- Use sharp cheddar for a tangy flavor or a mild cheese for a subtler taste.
Variations and Customizations
- Spicy Kick: Add diced jalapeños or a pinch of cayenne pepper to the egg mixture for some heat.
- Vegetarian Version: Replace sausage with sautéed mushrooms, crumbled tofu, or a plant-based sausage alternative.
- Herb Infusion: Add fresh herbs like parsley, thyme, or basil for a fragrant twist.
- Cheese Swap: Try mozzarella, pepper jack, or feta for different flavor profiles.
- Gluten-Free: Use gluten-free bread cubes or substitute with cooked quinoa or rice for a grain-free option.
- Make it Mini: Prepare in muffin tins for individual servings perfect for grab-and-go breakfasts.
How to Store Leftovers
After the casserole has completely cooled, cover it tightly with plastic wrap or transfer portions into airtight containers. Store in the refrigerator for up to 4 days. To reheat, microwave individual servings for 1-2 minutes or warm in a preheated oven at 350°F (175°C) until heated through. This casserole also freezes well—wrap portions in foil or place in freezer-safe containers and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.
FAQ
Can I prepare this casserole the night before?
Absolutely! Assemble the casserole in the baking dish, cover it tightly, and refrigerate overnight. In the morning, simply bake it fresh. This makes for a super convenient breakfast or brunch option.
What type of sausage works best for this recipe?
Ground chicken or turkey sausage works perfectly here, offering a mild yet flavorful base. Choose your preferred spice level, but avoid overly greasy sausages to keep the casserole from becoming too oily.
Can I make this casserole dairy-free?
Yes! Substitute the milk with a plant-based alternative like almond, soy, or oat milk, and use dairy-free cheese or omit the cheese altogether. The texture will be slightly different but still delicious.
Is this recipe suitable for meal prep?
Definitely. This casserole is a fantastic make-ahead meal. You can prepare it early in the week and enjoy quick, filling breakfasts or lunches throughout the next few days.
Conclusion
This Sausage Egg Casserole is the ultimate crowd-pleasing breakfast that combines simplicity with bold, comforting flavors. Its versatility allows you to customize it to fit your preferences, whether you want to add veggies, switch up the cheese, or make it gluten-free. Easy to prepare ahead of time and perfect for feeding a family or guests, it’s a recipe that will become a staple in your kitchen. Give it a try, and watch as it quickly becomes your go-to breakfast for busy mornings and special occasions alike!

Sausage Egg Casserole
Ingredients
- 1 pound ground chicken or turkey sausage use a mild or spicy sausage alternative
- 8 large eggs
- 2 cups whole milk or any plant-based milk of your choice
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 4 cups cubed day-old bread such as white or whole wheat, crusts removed
- 1 1/2 cups shredded cheddar cheese or your favorite cheese blend
- 1/2 cup chopped green onions or chives
- 1 cup diced bell peppers or mushrooms optional, for extra veggies
Instructions
Step 1: Preheat and Prepare
- Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish with cooking spray or butter to prevent sticking.
Step 2: Cook the Sausage
- In a large skillet over medium heat, cook the ground sausage until fully browned and cooked through, about 6-8 minutes. Break it apart with a spatula as it cooks. Once done, drain any excess fat and set aside.
Step 3: Mix the Egg Base
- In a large mixing bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder until thoroughly combined.
Step 4: Assemble the Casserole
- Add the cubed bread, cooked sausage, shredded cheese, chopped green onions, and any optional vegetables into the egg mixture. Gently fold everything together until the bread is evenly coated.
Step 5: Transfer to Baking Dish
- Pour the mixture into the prepared baking dish, spreading it out evenly.
Step 6: Bake
- Bake uncovered for 45-50 minutes or until the casserole is set and the top is golden brown. A toothpick inserted into the center should come out clean.
Step 7: Cool and Serve
- Allow the casserole to cool for about 10 minutes before slicing. This helps it set further and makes serving easier.
Equipment
- 9x13-inch Baking Dish
- Large Skillet
- Mixing Bowl
- Whisk