Biscuits and Gravy Breakfast Casserole

By Julia • December 7, 2025 • Reading time: 6 min

Tip: save now, cook later.

Serves 4–6

This Biscuits and Gravy Breakfast Casserole is all about those classic, comforting flavors you love for breakfast. Fluffy biscuit pieces are baked right into a creamy, sausage-filled gravy that’s rich and full of flavor. It’s a warm, hearty dish that feels like a big morning hug on a plate.

I love making this casserole when I have friends or family over because it’s so easy to prepare ahead and bake in the morning. The sausage gravy soaks into the biscuits just right, making every bite soft and delicious. If you’re someone who enjoys a hearty breakfast without too much fuss, this casserole is a real winner in my book.

Serving it with a simple side of fresh fruit or a green salad is my favorite way to balance the meal and keep things light. Plus, it’s great for using up any leftover biscuits or sausage you might have on hand. This dish always brings smiles to the breakfast table, and I’m always asked for seconds!

Key Ingredients & Substitutions

Biscuit Dough: Using refrigerated biscuit dough saves time and keeps the biscuits nice and fluffy. If you prefer, you can make homemade biscuits or use pre-baked biscuits torn into pieces.

Breakfast Sausage: Mild sausage provides balance, but spicy sausage adds a nice kick. For a lighter option, try turkey sausage or a plant-based sausage alternative.

Flour: All-purpose flour is best for thickening the gravy. If you need gluten-free options, try a gluten-free all-purpose flour blend or cornstarch (use about half the amount).

Milk & Cream: Whole milk gives the gravy a rich taste, but you can substitute with 2% milk or even non-dairy milk like almond or oat milk for a dairy-free twist. Heavy cream adds extra creaminess but can be swapped with more milk.

Cheddar Cheese: Cheddar adds a sharp, melty topping. Feel free to use Colby, Monterey Jack, or a blend for a milder or creamier result.

How Can I Make Sure the Gravy Thickens Perfectly?

Thickening the sausage gravy is key to a great casserole texture. Here’s how to get it just right:

After browning the sausage, sprinkle the flour evenly over the meat and stir well to coat. This cooks out the raw flour taste.
Slowly whisk in the milk while stirring constantly. This prevents lumps from forming.
Keep the heat at medium and cook the mixture for several minutes until it thickens to a smooth, creamy gravy. If it’s too thin, cook a bit longer. If too thick, add a splash of milk to loosen it.
Season well with salt, pepper, and optional garlic and onion powder to boost flavor.

Patience and constant stirring are your friends here—rushing can cause lumps or burning. This step creates the creamy base that brings the whole casserole together!

Equipment You’ll Need

9×13 inch baking dish – perfect size for layering biscuits and gravy evenly for baking.
Large skillet – essential for cooking the sausage and making smooth gravy.
Whisk – helps you mix the flour and milk without lumps for creamy gravy.
Mixing bowl – for whisking eggs and cream before pouring over the casserole.
Knife and cutting board – to cut biscuit dough into pieces easily.

Flavor Variations & Add-Ins

Swap breakfast sausage for cooked bacon or sausage links for a different meaty texture.
Add diced bell peppers or green onions to the gravy for a fresh, mild crunch and color.
Use pepper jack cheese instead of cheddar for a little spicy twist.
Mix in cooked mushrooms or spinach for extra veggies and earthiness.

How to Make Biscuits and Gravy Breakfast Casserole?

Ingredients You’ll Need:

For The Casserole:

1 (16 oz) can refrigerated biscuit dough (about 8 biscuits)
1 pound breakfast sausage (mild or spicy depending on preference)
3 tablespoons all-purpose flour
3 cups whole milk
Salt and freshly ground black pepper, to taste
1 teaspoon garlic powder (optional)
1 teaspoon onion powder (optional)
1 ½ cups shredded cheddar cheese, divided
4 large eggs
¼ cup heavy cream or milk
Butter or cooking spray to grease the baking dish

How Much Time Will You Need?

This recipe takes about 15 minutes of prep time, plus 35 to 40 minutes to bake in the oven. You’ll spend a few minutes cooking the sausage and making the gravy, then assembling the layers before baking until golden and set.

Step-by-Step Instructions:

1. Preheat Oven and Prepare Baking Dish:

Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish with butter or cooking spray so the casserole won’t stick.

2. Prepare Biscuits:

Cut each biscuit into quarters and spread them evenly in the bottom of the prepared baking dish. This will form the base of your casserole.

3. Cook Sausage and Make Gravy:

In a large skillet over medium heat, cook the sausage, breaking it up with a spoon until browned and fully cooked, about 8 to 10 minutes. Drain excess grease if desired. Sprinkle the flour over the cooked sausage and stir to coat evenly. Cook for another 1–2 minutes to remove the raw flour taste. Gradually whisk in the milk, stirring constantly, and cook until the gravy thickens, about 5–7 minutes. Season with salt, pepper, garlic powder, and onion powder to taste. Remove from heat and stir in 1 cup of shredded cheddar cheese until melted and smooth.

4. Assemble and Add Egg Mixture:

Pour the sausage gravy evenly over the biscuit pieces in the baking dish. In a medium bowl, whisk together the eggs and heavy cream (or milk). Then pour this egg mixture evenly over the biscuit and gravy layer. Sprinkle the remaining ½ cup of shredded cheddar cheese on top.

5. Bake and Serve:

Bake in the preheated oven for 35 to 40 minutes, or until the casserole is set in the center and the biscuits are golden brown on top. Let it cool for 5 minutes before serving warm. Enjoy your hearty and comforting breakfast casserole!

Can I Use Frozen Biscuit Dough Instead of Refrigerated?

Yes, but make sure to thaw the frozen biscuit dough in the refrigerator overnight before cutting and using it in the casserole. This helps the dough bake evenly and rise properly.

Can I Make This Casserole the Night Before?

Absolutely! Prepare the casserole up to the baking step, cover it tightly, and refrigerate overnight. In the morning, bake it a few extra minutes to ensure it’s heated through and cooked perfectly.

How Should I Store Leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat portions in the microwave or oven until warmed through.

Can I Add Vegetables to This Casserole?

Yes! Feel free to stir in cooked veggies like bell peppers, mushrooms, or spinach with the sausage for extra flavor and nutrition before layering the casserole.