Egg Breakfast Casserole Recipe

If you’re looking for a dish that combines comfort, flavor, and a bit of morning magic, this Egg Breakfast Casserole is exactly what you need. Packed with savory sausage, creamy eggs, sharp cheddar cheeses, and fragrant herbs, this casserole is a perfect way to start your day with a satisfying meal that feels like a warm hug. It’s easy to prepare ahead, feeds a crowd, and transforms simple ingredients into a hearty, memorable breakfast.

Ingredients You’ll Need

Each ingredient in this Egg Breakfast Casserole plays a crucial role, from building layers of flavor to adding texture and color. The simplicity of these staples makes the recipe approachable, yet every component works together to create something truly special for your morning table.

• Breakfast sausage (1 pound): Adds a rich, savory depth and meaty texture that forms the heart of the casserole.
• Jumbo eggs (8): Provide the fluffy, custardy base that holds the casserole together with creamy richness.
• Salt (1/2 teaspoon): Enhances all the other flavors without overpowering them.
• Black pepper (1/2 teaspoon): Offers a gentle warmth and subtle spice touch to brighten the dish.
• Cayenne pepper (1/4–1/2 teaspoon, optional): Adds a hint of heat if you like a little kick in your breakfast.
• Ground mustard (1/2 teaspoon): Brings a mild tangy sharpness that complements the cheese beautifully.
• Dried sage (1 teaspoon): Infuses aromatic earthiness for a cozy, comforting flavor.
• Dried chives (1/2 teaspoon) or fresh chives (1 tablespoon, sliced): Sprinkle in a mild onion-like freshness that lifts the entire casserole.
• Half-and-half (2 cups): Makes the custard dreamy and rich without being too heavy.
• Yellow shredded sharp cheddar cheese (1 1/2 cups): Adds a classic creamy sharpness and melty texture.
• Extra sharp white cheddar cheese (1 cup): Brings a bright, tangier cheese flavor to balance the richness.
• Butter bread or sandwich bread (10 slices, cubed): Absorbs the custard, providing a soft yet structured base for the casserole.

How to Make Egg Breakfast Casserole

Step 1: Cook the Sausage

Start by browning the breakfast sausage in a skillet over medium heat until it’s fully cooked and nicely caramelized. This step unlocks deep, meaty flavors that become the backbone of your casserole. Once cooked, drain excess fat to keep the dish from becoming greasy.

Step 2: Prepare the Egg Mixture

In a large bowl, whisk together the eggs, half-and-half, salt, black pepper, cayenne pepper, ground mustard, dried sage, and chives. Be sure to blend well to create a flavorful, uniform custard that will mingle perfectly with the other ingredients.

Step 3: Assemble the Casserole

Grease a baking dish and layer the cubed bread evenly on the bottom. Sprinkle the cooked sausage over the bread layer, then gently spread the shredded yellow cheddar followed by the extra sharp white cheddar. Pour the egg mixture evenly over everything, ensuring the custard seeps down into the bread and sausage, soaking up all those wonderful flavors.

Step 4: Bake to Golden Perfection

Place the casserole in a preheated oven at 350°F (175°C) and bake for 45 to 55 minutes until the eggs are set and the top is beautifully golden. You can test doneness by inserting a knife in the center; it should come out clean or with just a little moisture. Let it rest for a few minutes before serving to let the flavors meld and the texture settle.

How to Serve Egg Breakfast Casserole

Garnishes

A sprinkle of fresh chives or parsley adds a pop of color and a fresh note that balances the richness. You can also grate a little extra sharp cheddar cheese on top for some extra melty goodness just before serving.

Side Dishes

This casserole pairs wonderfully with fresh fruit or a crisp green salad dressed lightly with vinaigrette to contrast the creamy richness. For a heartier brunch, serve alongside crispy breakfast potatoes or sautéed mushrooms for a great texture variety.

Creative Ways to Present

Turn your casserole into individual portions by baking in muffin tins for easy grab-and-go servings that look delightful. Alternatively, layer in a clear glass casserole dish so guests can admire the colorful strata of cheese, sausage, and eggs—it makes for an inviting centerpiece that’s as beautiful as it is delicious.

Make Ahead and Storage

Storing Leftovers

Leftover Egg Breakfast Casserole can be stored covered in the refrigerator for up to 3 days. Keep it airtight to maintain moisture and flavor, and you’ll have a quick breakfast ready during your busy week.

Freezing

This casserole freezes beautifully. Wrap the cooled casserole tightly in plastic wrap and then foil or transfer portions to freezer-safe containers. It will keep well for up to 2 months, making meal prep a breeze whenever you need a hearty breakfast fix.

Reheating

Reheat leftovers in the oven at 350°F (175°C) for about 15-20 minutes until warmed through to preserve the casserole’s texture. You can also microwave individual servings, but take care not to overheat, or the eggs can become rubbery.

FAQs

Can I use a different type of bread for this Egg Breakfast Casserole?

Absolutely! While butter or sandwich bread works best for soaking up the custard, you can experiment with sourdough, brioche, or even whole wheat bread for varied flavors and textures. Just be mindful that denser breads may require more soaking time.

Is it possible to make this casserole vegetarian?

Definitely! Simply omit the sausage and consider adding sautéed vegetables like mushrooms, spinach, or bell peppers to replace the savory heartiness. Using plant-based sausage alternatives is also a great option to keep that meaty satisfaction.

Why is the Egg Breakfast Casserole sometimes watery?

This can happen if the casserole hasn’t soaked long enough or if too much liquid is used. Be sure to fully incorporate the bread cubes so they absorb the egg mixture before baking, and avoid adding extra liquid beyond what the recipe calls for.

Can I prepare this casserole the night before?

Yes! In fact, assembling the casserole the night before and refrigerating it allows the bread to soak up the custard fully, enhancing the flavors and texture. Just cover it tightly and bake in the morning right from the fridge, adding a few extra minutes to the baking time.

What cheeses work well in an Egg Breakfast Casserole?

Sharp cheddar cheeses are classic choices for their meltability and tang, but feel free to mix in Monterey Jack, Gruyère, or mozzarella depending on your preference. Each adds a unique character while keeping the dish creamy and satisfying.

Final Thoughts

This Egg Breakfast Casserole is one of those joyful dishes that warms your kitchen and your heart, every time you make it. Whether it’s a special weekend brunch or a simple breakfast during the week, it’s sure to become a beloved favorite in your home. Give it a try, and watch how quickly it becomes a staple you can’t live without!

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