There's something beautifully comforting about a warm, hearty breakfast casserole, isn't there? The moment you slice into this dish, the delightful blend of savory sausage, fluffy eggs, and gooey cheese creates a harmony of flavors that dances on your palate. It’s the perfect solution for those busy mornings or for when you have friends and family gathering around the table.
I discovered this recipe during one of those chaotic weekends when I craved a delicious home-cooked meal but didn’t want to spend hours in the kitchen. With just a little bit of prep, you can whip up a breakfast casserole that will impress everyone at the brunch table—and it’s so versatile that you can easily customize it to suit your taste!
Imagine pulling a golden-brown casserole from the oven, the enticing aroma filling your kitchen, and satisfying even the pickiest eaters. Ready to dive into an easy breakfast that feels indulgent? Let’s get started with this irresistible breakfast casserole that will make your mornings a delight!
Why You'll Love This Breakfast Casserole
- This Breakfast Casserole is a breeze to prepare, making your busy mornings hassle-free.
- With its robust flavors from savory sausage and creamy cheese, every bite is a delightful experience.
- It’s incredibly versatile, allowing you to add your favorite ingredients or leftovers to create a unique dish each time.
- Not only is it visually appealing with its golden crust and lush layers, but it also makes for a fantastic centerpiece at any breakfast gathering.
Breakfast Casserole Ingredients
For the Casserole
• 1 lb breakfast sausage – opt for spicy or mild based on your taste preference.
• 8 large eggs – the heart of the dish, providing structure and protein.
• 2 cups milk – adds creaminess; substitute with almond or oat milk for a dairy-free option.
• 4 cups bread cubes – day-old bread works best for soaking up the flavors.
• 2 cups shredded cheese – mix of cheddar and mozzarella brings a gooey texture.
For Seasoning
• 0.75 teaspoon salt – enhances flavor; adjust to taste if using salty sausage.
• 0.5 teaspoon black pepper – adds a touch of warmth; feel free to increase for a spicier kick.
Dive into this breakfast casserole and savor how each ingredient complements the others to create a mouthwatering morning feast!

How to Make Breakfast Casserole
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Preheat and Prepare: Start by preheating your oven to 350°F (175°C) and greasing a 9x13 inch baking dish. This ensures your casserole won’t stick and will bake evenly.
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Cook Sausage: In a large skillet, cook the breakfast sausage over medium heat until it turns browned and crumbles nicely. Drain off the excess fat so your casserole doesn’t become greasy.
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Layer Ingredients: Arrange the bread cubes evenly in the greased dish, then sprinkle the cooked sausage on top. Follow up with a generous layer of shredded cheese, ensuring every bite will be cheesy goodness.
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Whisk Eggs: In a mixing bowl, whisk together the eggs, milk, salt, and pepper until well combined. This will create a fluffy texture distributed throughout the casserole.
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Combine Mixture: Pour your egg mixture evenly over the layered ingredients in the baking dish. Make sure the bread cubes soak up the egg mixture, contributing to a rich and moist casserole.
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Bake: Slide the dish into your preheated oven and bake for 40–45 minutes. You’ll know it’s done when the top is golden brown and the center is set.
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Rest Before Serving: Once baked, let the casserole rest for about 5–10 minutes. This allows it to firm up slightly, making it easier to cut and serve.
Optional: Garnish with fresh herbs or sliced green onions for an extra burst of flavor.
Exact quantities are listed in the recipe card below.
How to Store and Freeze Breakfast Casserole
Fridge: Store leftover breakfast casserole in an airtight container for up to 3 days. Make sure it cools completely before sealing to prevent condensation.
Freezer: For longer storage, freeze the casserole for up to 2 months. Cut it into servings, wrap tightly in plastic wrap, and place in a freezer-safe container.
Reheating: To reheat, thaw overnight in the fridge, then bake at 350°F (175°C) for about 20-25 minutes, or until heated through. Enjoy the flavors of your breakfast casserole again!
Make Ahead Options
These Breakfast Casserole preparations are perfect for busy home cooks who want to save time during hectic mornings! You can prepare the entire casserole up to 24 hours in advance. Simply follow the recipe steps through layering the ingredients, then cover it tightly with plastic wrap and refrigerate. To maintain the quality and prevent sogginess, ensure the bread cubes are well-soaked in the egg mixture. When you're ready to bake, simply remove it from the fridge and let it sit at room temperature for about 15 minutes before placing it in a preheated oven (350°F). Bake for 40-45 minutes as directed, and you'll have a delicious, comforting breakfast casserole ready to serve with minimal effort!
What to Serve with Breakfast Casserole?
A warm breakfast casserole is just the beginning of a joyful morning meal, inviting a world of delicious accompaniments.
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Fresh Fruit Salad: A vibrant mix of seasonal fruits adds a refreshing sweetness, balancing the richness of the casserole beautifully.
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Crispy Bacon: The salty crunch of bacon provides a satisfying contrast to the soft textures of the casserole, making every bite delightful.
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Savory Hash Browns: Golden, crispy hash browns offer a hearty side that complements the casserole's creamy components with their satisfying crunch.
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Cheesy Grits: This Southern classic adds a creamy, cheesy touch that pairs flawlessly with the savory flavors of your breakfast casserole.
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Herbed Toast: Serve with slices of crusty bread drizzled with olive oil and sprinkled with herbs, providing a light, crunchy side that enhances the meal.
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Coffee or Fresh Juice: A steaming cup of coffee or a cold glass of freshly squeezed juice lifts the whole breakfast experience, energizing your morning!
Each of these pairings brings its unique charm and balance to the table, making your breakfast a complete and memorable feast.
Breakfast Casserole Variations
Feel free to unleash your creativity with this recipe by swapping in flavors and textures that excite your taste buds!
- Vegetarian: Substitute breakfast sausage with sautéed vegetables like bell peppers, onions, and spinach for a hearty meatless option.
- Gluten-Free: Use gluten-free bread cubes to cater to dietary needs while maintaining that comforting, satisfying texture.
- Spicy Kick: Add diced jalapeños or a sprinkle of crushed red pepper flakes to bring an adventurous heat to your casserole.
- Loaded with Veggies: Toss in some cooked broccoli, mushrooms, or zucchini for an extra nutritious boost without sacrificing flavor.
- Herb Infusion: Enhance the flavor profile by mixing in fresh herbs like parsley, chives, or thyme into the egg mixture.
- Cheese Lovers: Experiment with different cheeses such as feta, pepper jack, or goat cheese for a unique creamy bliss.
- Make-Ahead: Prepare the casserole the night before, refrigerate, and simply pop it in the oven for an effortless morning treat.
- Sweet Twist: For a unique dessert-like option, add cinnamon, nutmeg, and diced apples, making it a delightful brunch surprise.
Chef's Helpful Tips
- For your Breakfast Casserole, ensure you use day-old bread for the best texture as it will absorb the egg mixture without becoming too soggy.
- Avoid overcooking the sausage to maintain a juicy flavor; it should be browned but not dried out.
- When whisking your egg mixture, incorporate air by beating vigorously to achieve that fluffy texture throughout.
- Always rest the casserole for 5-10 minutes after baking to ensure clean slices and that the flavors meld nicely before serving.
Breakfast Casserole Recipe FAQs
What type of bread is best for the breakfast casserole?
For the best texture, I recommend using day-old bread, like sourdough or French bread. This bread will soak up the egg mixture without becoming too soggy, providing that perfect balance of flavor and consistency.
How should I store leftovers of the breakfast casserole?
Store any leftover breakfast casserole in an airtight container in the fridge for up to 3 days. It's essential to let the casserole cool completely before sealing the container to prevent moisture build-up, which can lead to sogginess.
Can I freeze the breakfast casserole?
Absolutely! For longer storage, you can freeze the breakfast casserole for up to 2 months. After baking, allow it to cool, cut it into individual servings, and wrap each piece tightly in plastic wrap. Then place them in a freezer-safe container or zip-top bag, ensuring to remove as much air as possible.
What should I do if my breakfast casserole turns out too dry?
If you find your casserole is dry, it may have baked a little too long or not had enough moisture in the egg mixture. In future batches, try adding an extra egg or increasing the milk by a quarter cup. Keeping an eye on the baking time is crucial too; start checking for doneness a few minutes early!
Is this breakfast casserole suitable for people with dietary restrictions?
You can easily modify this recipe to accommodate dietary needs. For dairy-free options, substitute regular milk with almond or oat milk, and use nutritional yeast or dairy-free cheese alternatives. If gluten-free is necessary, opt for gluten-free bread and double-check that your sausage and other ingredients don’t contain gluten.
How long should I let the breakfast casserole rest before serving?
Let your breakfast casserole rest for about 5-10 minutes after baking. This resting time helps the casserole firm up slightly, making it easier to cut into neat slices and allowing the flavors to meld together beautifully before serving.

Breakfast Casserole
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.
- In a large skillet, cook the breakfast sausage over medium heat until browned and crumbled.
- Arrange the bread cubes evenly in the greased dish, then sprinkle the cooked sausage on top.
- Follow up with a generous layer of shredded cheese.
- In a mixing bowl, whisk together eggs, milk, salt, and pepper until well combined.
- Pour the egg mixture evenly over the layered ingredients.
- Bake for 40–45 minutes until the top is golden brown and the center is set.
- Let the casserole rest for about 5–10 minutes before serving.




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