Easy Breakfast Casserole with Sausage and Eggs

There’s something about a slow Saturday morning that calls for a meal that’s as comforting as it is effortless. The kind of dish that fills the kitchen with the smell of sizzling sausage and toasting bread long before anyone’s fully awake. That’s the magic of this Easy Breakfast Casserole with Sausage and Eggs. It’s the ultimate weekend workhorse, a one-pan wonder that turns simple ingredients into a warm, satisfying feast with minimal morning effort. Whether you’re feeding a crowd after a sleepover or just treating your family to a special start, this casserole is my go-to for good reason. It’s the definition of comfort food, made easy.

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Ingredients List (Easy Breakfast Casserole with Sausage and Eggs)

This Easy Breakfast Casserole with Sausage and Eggs comes together with ingredients you likely have on hand or can easily grab. The beauty is in its simplicity and flexibility.

• 1 pound breakfast sausage (mild or spicy), casings removed if using links
• 1 medium yellow onion, diced
• 1 red bell pepper, diced
• 6 large eggs
• 2 cups whole milk
• 1 teaspoon dry mustard
• 1 teaspoon garlic powder
• 1/2 teaspoon smoked paprika (optional, for depth)
• Salt and freshly ground black pepper, to taste
• 6 cups cubed day-old bread (about 1 loaf; French, sourdough, or hearty white work great)
• 2 cups shredded sharp cheddar cheese, divided
• 1/4 cup chopped fresh chives or parsley, for garnish

Smart Swaps & Dietary Notes:

• Sausage: Use turkey sausage for a leaner option. For a vegetarian twist, swap in a plant-based ground sausage crumble or sautéed mushrooms.
• Bread: Gluten-free bread cubes work perfectly here. Croissants make an incredibly rich and delicious substitute.
• Dairy: Whole milk provides the best creaminess, but 2% works. For a dairy-free version, use your favorite unsweetened non-dairy milk and a dairy-free cheese shred.
• Add-Ins: Feel free to stir in a handful of spinach, sliced mushrooms, or diced cooked potatoes when you add the peppers and onions.

Timing (Baked Breakfast Recipes)

One of the best parts of this Easy Breakfast Casserole with Sausage and Eggs is how the timing works in your favor. You can do the bulk of the work the night before!

• Prep Time: 20 minutes
• Cook Time: 45-50 minutes
• Total Time: 1 hour 10 minutes (plus optional overnight rest)
• Make-Ahead Tip: Assemble the entire casserole, cover tightly, and refrigerate overnight. In the morning, let it sit on the counter for 20-30 minutes while the oven preheats, then bake as directed. This actually allows the bread to fully soak up the custard, resulting in an even more cohesive and flavorful baked breakfast recipe.

Step-by-Step Instructions (Breakfast Sausage and Eggs Recipes)

Follow these simple steps for a foolproof casserole every time.

1. 
   

   Brown the Sausage & Sauté Veggies: Preheat your oven to 350°F (175°C). In a large skillet over medium heat, cook the breakfast sausage, breaking it up with a spoon, until browned and cooked through. Use a slotted spoon to transfer the sausage to a paper towel-lined plate, leaving about 1 tablespoon of drippings in the skillet. Add the diced onion and bell pepper to the skillet and cook until softened, about 5 minutes.

   
   
2. 
   

   Whisk the Custard Base: In a large mixing bowl, whisk together the 6 large eggs, milk, dry mustard, garlic powder, smoked paprika (if using), and a good pinch of salt and pepper. Whisk vigorously until the mixture is completely smooth and uniform. This custard is the heart of all great breakfast sausage and eggs recipes.

   
   
3. 
   

   Assemble the Casserole: In a greased 9×13 inch baking dish, spread the cubed bread evenly. Scatter the cooked sausage and sautéed veggies over the bread. Sprinkle with 1 1/2 cups of the shredded cheddar cheese. Pro Tip: Tossing the bread, sausage, and veggies together gently before adding the custard ensures every bite is perfectly balanced.

   
   
4. 
   

   Pour & Soak: Slowly and evenly pour the egg custard mixture over everything in the baking dish. Press down gently with a spatula to ensure all the bread cubes are submerged. Let it sit for 10 minutes so the bread can start absorbing the liquid.

   
   
5. 
   

   Bake to Golden Perfection: Sprinkle the remaining 1/2 cup of cheese over the top. Bake for 45-50 minutes, or until the center is fully set (no jiggle) and the top is a beautiful, golden brown. A knife inserted in the center should come out clean.

   
   
6. 
   

   Rest & Serve: Let the casserole rest for 5-10 minutes after pulling it from the oven. This allows it to set up perfectly for slicing. Garnish with fresh chives or parsley before serving.

   
   

Nutritional Information (Easy Delicious Breakfast Casseroles)

While this is a hearty comfort food dish, it’s packed with protein to keep you satisfied. Nutritional values are per serving (assuming 8 servings).

• Calories: ~420
• Protein: 24g
• Carbohydrates: 22g
• Fat: 26g
• Key Nutrients: This easy delicious breakfast casserole is an excellent source of protein from the eggs and sausage, calcium from the cheese and milk, and vitamin C from the bell peppers. The eggs also provide choline, which is important for brain health.

Equipment Needed (Ground Sausage Recipes For Dinner)

You don’t need any fancy tools for this ground sausage recipe. Your everyday kitchen gear is perfect.

• A 9×13 inch baking dish (glass or ceramic is ideal)
• A large skillet (for browning the sausage and veggies)
• A large mixing bowl and whisk
• Measuring cups and spoons
• A sharp knife and cutting board
• A spatula or spoon for stirring

Why You’ll Love This Recipe (Biscuit Gravy Casserole)

This Easy Breakfast Casserole with Sausage and Eggs earns a permanent spot in your recipe rotation for so many reasons.

• The Ultimate Crowd-Pleaser: It effortlessly feeds a group and everyone, from kids to grandparents, goes back for seconds. It has all the cozy, savory appeal of a biscuit gravy casserole but in a simpler, bake-and-serve format.
• Make-Ahead Magic: Prep it the night before and just pop it in the oven in the morning. This is a game-changer for stress-free hosting or easy family mornings.
• Customizable Canvas: It’s endlessly adaptable with whatever veggies, cheese, or protein you have on hand. It’s a fantastic clean-out-the-fridge recipe.
• Leftovers That Shine: It reheats beautifully for quick weekday breakfasts, making it a brilliant meal prep option.

Healthier Alternatives for the Recipe

You can easily tweak this Easy Breakfast Casserole with Sausage and Eggs to fit different dietary needs without sacrificing flavor.

• Gluten-Free: Use your favorite gluten-free bread cubes. Ensure your sausage is certified gluten-free.
• Dairy-Free/Lighter: Swap the whole milk for unsweetened almond or oat milk. Use a dairy-free cheese alternative or simply omit the cheese—the custard and sausage provide plenty of flavor. You can also use 1% or 2% milk.
• Lower-Carb/High-Protein: Reduce the bread by half and add in more sautéed veggies like mushrooms, spinach, and zucchini. You can also add a scoop of unflavored protein powder to the egg custard mixture (whisk very well to avoid clumps).
• Vegetarian: Omit the sausage and use a plant-based ground “meat” or double up on sautéed veggies like mushrooms, bell peppers, and spinach. Adding a can of drained, rinsed white beans can provide great texture and protein.

Serving Suggestions

This savory bake pairs beautifully with a bright, tangy side to cut through its richness. I love serving it with a simple arugula salad dressed in lemon juice or a refreshing glass of cold-pressed orange juice.

• For a Full Brunch Spread: Pair it with fresh fruit salad, crispy hash browns, and a platter of my Christmas Tree Deviled Eggs for a festive touch.
• Simple & Satisfying: A dollop of cool sour cream or salsa, a few slices of avocado, and some hot sauce on the side are all you need.
• Dinner Option: Yes, this Easy Breakfast Casserole with Sausage and Eggs makes a fantastic “brinner” (breakfast for dinner)! Serve it with a side of roasted asparagus or a simple green salad for a complete, comforting meal. If you love the idea of savory baked dishes for dinner, you might also enjoy my Cheesy Ground Beef Potato Casserole.

Common Mistakes to Avoid

A few simple tips will guarantee your Easy Breakfast Casserole with Sausage and Eggs turns out perfect every time.

• Using Fresh, Soft Bread: Day-old, slightly stale bread is crucial. Fresh bread will turn to mush in the custard. If you only have fresh bread, cube it and toast it in a low oven for 10-15 minutes to dry it out first.
• Skipping the Soak Time: Don’t pour the custard and immediately put the casserole in the oven. Letting it sit for that 10 minutes (or overnight!) ensures the bread fully absorbs the egg mixture, preventing a dry top and soggy bottom.
• Overbaking: The casserole is done when the center is just set. Overbaking leads to dry, rubbery eggs. Look for that golden-brown top and a slight jiggle that firms up when you tap the pan.
• Not Seasoning the Custard: The egg and milk mixture needs its own seasoning. Don’t rely solely on the sausage and cheese. That pinch of salt, pepper, and spices in the custard makes all the difference.

Storing Tips for the Recipe

This casserole is arguably even better as leftovers, making it a fantastic make-ahead meal.

• Refrigerating Leftovers: Cool completely, then cover tightly with plastic wrap or transfer to an airtight container. It will keep in the fridge for 3-4 days.
• Freezing: This Easy Breakfast Casserole with Sausage and Eggs freezes wonderfully. Bake and cool completely. Wrap the whole dish or individual portions tightly in plastic wrap and then foil. Freeze for up to 2 months. Thaw overnight in the refrigerator.
• Reheating: For best results, reheat individual portions in the microwave until warmed through. For larger portions or the whole casserole, reheat in a 300°F oven, covered with foil, for 15-20 minutes or until hot. This keeps the texture from getting rubbery.

Conclusion

At the end of the day, the best recipes are the ones that gather people around the table without causing stress in the kitchen. This Easy Breakfast Casserole with Sausage and Eggs is exactly that—a reliable, delicious, and deeply satisfying dish that turns an ordinary morning into something special. It’s proof that with a few simple ingredients and a little bit of love, you can create a meal that feels like home.

I hope this becomes a new weekend tradition in your house. If you’re looking for other cozy, family-friendly casseroles, be sure to check out my Spicy Southern Chicken Spaghetti Casserole for a dinner option, or these incredibly savory Stuffing Sausage Balls as a perfect appetizer. And for another easy, one-pan wonder, my Salsa Verde Chicken Rice Skillet is always a weeknight winner.

Now, I’d love to hear from you! Did you add any fun mix-ins? How did your family like it? Let me know how your Easy Breakfast Casserole with Sausage and Eggs turned out in the comments below. And if you snap a photo, don’t forget to tag @Homestyletable so I can see your beautiful creation.

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