This Breakfast Casserole is a hearty and satisfying dish that’s perfect for a crowd! With layers of flaky biscuits, savory sausage, and melted cheese, all baked together in a creamy egg mixture, it’s a delicious and easy-to-make recipe that’s perfect for brunch, potlucks, or holiday gatherings.

Why You’ll Love This Recipe

Easy and Convenient: This casserole is incredibly easy to assemble with pre-made biscuit dough and pre-cooked sausage crumbles. It’s a perfect option for busy mornings or when you’re short on time.
Flavorful and Satisfying: The combination of savory sausage, melted cheese, and a creamy egg mixture is a classic for a reason. It’s a hearty and satisfying dish that will please everyone at the table.
Versatile: You can easily customize this casserole to your liking by adding different vegetables, cheeses, or even a touch of spice. It’s a flexible recipe that can be adapted to your taste and dietary preferences.

Ingredients

Refrigerated biscuits: Use your favorite brand of refrigerated biscuits, such as Grands!
Pre-cooked sausage crumbles: Use pre-cooked sausage crumbles, such as Jimmy Dean, for convenience. You can also use leftover cooked sausage or cook your own sausage and crumble it.
Shredded mozzarella cheese: Adds a creamy and melty texture.
Shredded cheddar cheese: Adds a sharp and cheesy flavor.
Large eggs: Beaten eggs bind the ingredients together and create a creamy texture.
Milk: Adds richness and helps to create a smooth custard.
Salt and pepper: Enhances the overall flavor of the casserole.

Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

How to Make Breakfast Casserole

Step 1: Preheat and Prep

Preheat your oven to 425°F (220°C).
Grease a 9×13 inch baking dish with butter or cooking spray.

Step 2: Assemble the Casserole

Line the bottom of the prepared baking dish with the biscuit dough, pressing the biscuits together to form a crust.
Sprinkle the sausage crumbles evenly over the biscuit crust.
Top the sausage with the shredded mozzarella and cheddar cheese.
In a medium bowl, whisk together the eggs, milk, salt, and pepper until well combined.
Pour the egg mixture evenly over the sausage and cheese.

Step 3: Bake and Serve

Bake the casserole in the preheated oven for 25-30 minutes, or until the center is set and doesn’t jiggle when you shake the dish.
Let the casserole stand for 5 minutes before cutting it into squares and serving warm.

Pro Tips for Making the Recipe

Add Veggies: For a more nutritious and flavorful casserole, sauté some chopped vegetables, such as onions, bell peppers, or mushrooms, before adding them to the casserole. This will remove excess moisture and enhance their flavor.
Homemade Biscuit Dough: If you prefer, you can use homemade biscuit dough. Make sure to partially bake the biscuit dough before adding the other toppings to ensure that it cooks through completely.
Make Ahead: You can assemble the casserole through step 4 and refrigerate it overnight. When ready to bake, uncover and bake as directed, adding a few extra minutes to the baking time.

How to Serve

This Breakfast Casserole is delicious on its own or with:

Fresh fruit: A side of fresh fruit or a fruit salad adds a refreshing touch.
Toast or muffins: Serve with toast, English muffins, or muffins for a complete breakfast.
Yogurt or sour cream: A dollop of yogurt or sour cream adds a creamy and tangy element.

Make Ahead and Storage

Storing Leftovers

Store leftover breakfast casserole in an airtight container in the refrigerator for up to 3-4 days, or freeze it for up to 2 months.

Reheating

Reheat individual portions in the microwave or oven until heated through.

FAQs

1. Can I use a different type of meat?

Yes, you can substitute sausage with bacon, ham, or ground beef.

2. Can I use a different type of cheese?

Absolutely! Feel free to use your favorite cheese or a blend of different cheeses.

3. Can I make this casserole vegetarian?

Yes, you can omit the sausage and add more vegetables or a plant-based sausage alternative.

4. How can I prevent the casserole from becoming soggy?

Make sure to use a baking dish that’s not too deep. You can also blind-bake the biscuit crust for a few minutes before adding the other ingredients to help prevent it from becoming soggy.