Name: Sausage Breakfast Casserole
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 8 oz breakfast sausage; 6 large eggs; 2 cups whole milk; 4 cups cubed bread (preferably day-old); 1 ½ cups shredded cheddar cheese; ½ teaspoon salt; ¼ teaspoon black pepper; ½ cup chopped bell peppers (optional); ¼ cup chopped onions (optional); 1 cup chopped spinach (optional)

When you need a hearty, savory, and soul-warming breakfast that can feed a crowd or last you through the week, this Sausage Breakfast Casserole delivers. It’s loaded with flavor from browned sausage, fluffy eggs, and melted cheese all baked into a golden crust of bread cubes. Whether you’re prepping for a holiday morning, hosting brunch, or just want a satisfying weekend treat, this dish brings comfort in every bite.

What makes this casserole extra special is its flexibility. You can make it the night before, pop it in the oven the next morning, and enjoy a no-fuss breakfast. It reheats beautifully too, so leftovers never go to waste. Serve it with fresh fruit or a side of greens and your morning is sorted.

Why You’ll Love This Sausage Breakfast Casserole

This recipe is the kind of dependable breakfast that tastes like home. It combines simple ingredients in a way that feels indulgent but is easy to put together. The richness of sausage and cheese balances perfectly with the airy texture of baked eggs and bread. It’s customizable, kid-friendly, and can even be frozen for future meals.

Can I Use Different Types of Sausage?

Absolutely! This casserole works beautifully with mild or spicy breakfast sausage, turkey sausage, or even plant-based sausage. Each one brings a unique flavor twist. Just be sure to cook and drain the sausage before mixing it into the casserole.

Ingredients for the Sausage Breakfast Casserole

This casserole keeps it classic with ingredients most kitchens already have on hand. Each component plays an important role in flavor and texture, creating a warm and filling dish everyone will love.

Breakfast sausage: This is the star of the dish. Choose a flavorful sausage that browns nicely.
Eggs: They bind everything together and give that fluffy casserole texture.
Milk: Whole milk adds creaminess and helps create a soft custard.
Bread: Cubed bread soaks up the egg mixture and creates structure. Day-old bread works best.
Cheddar cheese: Melty, rich, and sharp, cheddar is the perfect pairing for sausage.
Salt and pepper: Simple seasoning brings out all the flavors.
**Optional veggies (onions, bell peppers, spinach)**: Add color, texture, and nutrition if desired.

How To Make the Sausage Breakfast Casserole

Step 1: Cook the Sausage

In a skillet over medium heat, cook the breakfast sausage until browned and crumbly. Drain any excess grease and set aside to cool slightly.

Step 2: Prepare the Baking Dish

Grease a 9×13-inch baking dish with butter or nonstick spray. Spread the bread cubes evenly in the dish.

Step 3: Layer the Ingredients

Sprinkle the cooked sausage over the bread, followed by any optional veggies. Then top with shredded cheddar cheese.

Step 4: Make the Egg Mixture

In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined. Pour this mixture evenly over the casserole.

Step 5: Chill or Bake

You can bake immediately, or for best texture, cover the casserole and refrigerate overnight to let the flavors soak in.

Step 6: Bake to Perfection

Preheat the oven to 350°F (175°C). Bake uncovered for 45 to 50 minutes, or until the top is golden and the center is set.

How to Serve and Store This Sausage Breakfast Casserole

This sausage breakfast casserole serves 8 to 10 people, making it ideal for family gatherings, potlucks, or meal prepping for the week. Once baked, let it cool for a few minutes before slicing into generous portions. Pair with fresh fruit, hot sauce, or a drizzle of maple syrup depending on your mood.

To store leftovers, cover tightly and refrigerate for up to 4 days. Reheat individual slices in the microwave or oven until warm. You can also freeze individual portions wrapped in foil and stored in a freezer bag. To reheat from frozen, thaw in the fridge overnight and bake at 350°F until hot.

What to Serve With Sausage Breakfast Casserole?

Fresh Fruit Salad

Brighten up the savory casserole with a colorful bowl of melon, berries, and citrus.

Buttermilk Pancakes

For a true brunch feast, serve fluffy pancakes on the side with maple syrup.

Roasted Breakfast Potatoes

Crispy roasted potatoes with garlic and herbs add an earthy balance.

Yogurt Parfaits

Layered yogurt, granola, and fruit bring freshness and crunch to your plate.

Avocado Toast

A slice of seeded bread with smashed avocado and chili flakes adds a trendy touch.

Cinnamon Rolls

A sweet cinnamon treat makes breakfast feel like a celebration.

Green Smoothie

A light and healthy green smoothie pairs great if you’re watching calories.

Hot Sauce or Salsa

Add a little kick with your favorite hot sauce or fresh pico de gallo.

Want More Casserole Ideas?

If this Sausage Breakfast Casserole hit the spot, here are more cozy casserole recipes you might want to try next:

Best Chicken and Rice Casserole when you need comfort in a dish.
Creamy Beef and Shells Recipe for a cheesy weeknight winner.
Cheesy Baked Tortellini with Meat Sauce if you love pasta and casseroles in one.
Baked Stuffed Shrimp Casserole for a seafood twist.
Copycat Cracker Barrel Hashbrown Casserole if you love southern-style sides.

Save This Recipe For Later

📌 Save this recipe to your Pinterest breakfast board so it’s ready when you need a weekend crowd-pleaser.

Let me know in the comments if you made it your own. Did you use sourdough? Maybe some jalapeños or mushrooms? I love seeing your spins on it!

Explore beautifully curated comforting casseroles and breakfast inspiration on Mia Recipes on Pinterest and discover what your mornings have been missing.