Southern-Style Sausage and Gravy Breakfast Casserole

There’s just something about a hearty Southern breakfast that makes any morning feel a little more special. I grew up loving the comfort of biscuits smothered in creamy sausage gravy, and this casserole brings all of that flavor together in one easy bake. It’s warm, cheesy, and completely satisfying, the kind of dish that’ll have everyone going back for seconds before you can even sit down with your coffee.

I love making this casserole when I’ve got a busy morning ahead but still want something that feels homemade. The layers of biscuits, savory sausage, fluffy eggs, and rich gravy all bake together into pure comfort. It’s a little bit indulgent, a whole lot delicious, and always a hit whether it’s a lazy Saturday at home or a family brunch. Plus, it makes the kitchen smell absolutely amazing while it’s in the oven, that alone is worth it!

What I really adore about this recipe is how simple it is to throw together. You can prep it the night before, pop it in the fridge, and bake it fresh in the morning with zero stress. I’ve served it on Christmas morning, for weekend guests, and even for breakfast-for-dinner nights. However you enjoy it, it’s one of those comforting Southern-style casseroles that just feels like home.

Ingredients

• 1 lb. ground breakfast sausage – I like to use a classic pork breakfast sausage for that rich, savory flavor that makes the casserole so comforting.
• (1) 8 count refrigerated biscuits – These bake up golden and fluffy, soaking up all the delicious gravy and egg mixture.
• 1/4 cup butter – Butter adds that creamy, velvety base for the homemade gravy.
• 1/4 cup all purpose flour – This helps thicken the gravy to that perfect, spoon-coating consistency.
• 1/2 tsp. salt – Just enough to balance the flavors and bring everything together.
• 1/2 tsp. ground black pepper – Adds a gentle kick and depth to the creamy gravy.
• Pinch of red pepper flakes – A tiny bit of heat that takes the flavor up a notch without overpowering it.
• 2 cups whole milk – Creates that smooth, creamy texture in the gravy that makes this dish so comforting.
• 6 large eggs – Whisked with cream to make the casserole light, fluffy, and rich.
• 1/4 cup heavy cream – Adds a touch of indulgence and makes the eggs extra creamy.
• 2 cups shredded cheddar cheese – Because everything’s better with a little melted cheese on top!

Recipe Instructions

You can find a printable recipe card at the bottom of this post.

1. Preheat the oven to 350°F (175°C) and lightly coat a 9×13 baking dish with nonstick spray. Set aside.

2. In a large skillet, cook and crumble the sausage over medium heat until fully cooked. Drain off any excess grease and set the sausage aside.

3. In a medium saucepan, melt the butter over medium heat.

4. Whisk in the flour and cook for 1–2 minutes to form a roux.

5. Stir in the salt, black pepper, and red pepper flakes.

6. Slowly pour in the milk, whisking constantly to avoid lumps.

7. Continue cooking, whisking frequently, until the gravy thickens.

8. Cut each biscuit into quarters and spread the pieces evenly over the bottom of the prepared baking dish.

9. Stir about ¼ of the cooked sausage into the gravy.

10. Sprinkle the remaining sausage evenly over the biscuit pieces.

11. Add a layer of shredded cheddar cheese on top.

12. In a medium bowl, whisk together the eggs and heavy cream until well combined.

13. Pour the egg mixture evenly over the biscuits, sausage, and cheese.

14. Pour the gravy evenly over the entire casserole.

15. Bake for 35–40 minutes, or until the center is set and the biscuit pieces are fully cooked. Check doneness by inserting a fork into the center; if it comes out clean and the biscuits are cooked through, it’s ready.

Serving & Storing

• I love serving this straight from the oven while it’s still hot and bubbly, it’s the ultimate comfort food moment. A little sprinkle of extra cheese on top right before serving makes it even better.

• This casserole pairs perfectly with a side of fresh fruit or a simple green salad if you’re serving it for brunch. And of course, a cup of strong coffee is a must.

• If you’ve got leftovers (which is rare in my house!), just cover and refrigerate them for up to 3 days.

• To reheat, pop a slice in the microwave for about a minute or warm it in the oven at 325°F until heated through, it tastes just as good the next day.

• You can also freeze individual portions for an easy grab-and-go breakfast later. Just thaw overnight in the fridge and reheat when you’re ready to eat.

Variations

• Spicy Kick – Use hot breakfast sausage and add a little extra red pepper for a bold, flavorful twist.

• Southwestern Style – Mix in some diced green chilies, pepper jack cheese, and a sprinkle of taco seasoning for a Tex-Mex vibe.

• Loaded Veggie – Add sautéed onions, peppers, and spinach for a hearty version packed with color and flavor.

• Bacon Lover’s Version – Swap some or all of the sausage for crispy crumbled bacon (or use both if you’re feeling extra).

• Gravy on the Side – Bake the biscuits, eggs, and sausage as usual, then drizzle warm gravy over each serving instead of layering it in.

• Hash Brown Base – Replace the biscuits with a layer of shredded hash browns for a different texture and a little extra crunch.

• Cheese Swap – Try mozzarella, Colby Jack, or a smoky cheddar blend for a new cheesy flavor.

• Mini Casseroles – Bake in muffin tins or small ramekins for individual servings, perfect for brunch buffets or meal prep.

Substitutions

• Sausage: You can use turkey sausage, chicken sausage, or even plant-based sausage if you prefer a lighter option.

• Biscuits: Crescent roll dough or canned biscuit dough pieces work perfectly in place of traditional biscuits.

• Butter: Margarine or plant-based butter can be used if you want to keep the recipe dairy-free.

• Flour: Gluten-free all-purpose flour will still give you a nice thick gravy if you need to avoid regular flour.

• Milk: Any kind of milk works here, such as 2%, skim, or unsweetened almond milk if that’s what you have.

• Heavy Cream: You can use half-and-half or a little extra milk instead, though the texture will be slightly lighter.

• Cheddar Cheese: Try mozzarella, Monterey Jack, or a spicy cheese blend for a fun twist on the flavor.

• Eggs: If you’re out, liquid egg substitute or egg whites will work in a pinch.

FAQs

Can I make this casserole ahead of time?
Yes, absolutely. You can assemble the casserole the night before, cover it tightly, and refrigerate it overnight. In the morning, just pop it into the oven and bake as directed.

Can I freeze this breakfast casserole?
Yes, you can. Once it’s baked and cooled, slice it into portions, wrap them well, and freeze for up to two months. Thaw in the fridge overnight before reheating.

How do I know when it’s done baking?
The center should be set and the biscuits fully cooked. You can test it by inserting a knife or fork into the middle. If it comes out clean and not wet, it’s ready.

Can I use store-bought gravy instead of making it from scratch?
Yes, if you’re short on time, a can or packet of sausage gravy will work fine. The homemade version adds a little extra flavor, but store-bought is a good shortcut.

What’s the best way to reheat leftovers?
I usually warm individual portions in the microwave for about a minute or reheat larger portions in the oven at 325°F until hot. It stays soft and flavorful either way.

Can I add vegetables to this recipe?
Yes, you can. Diced bell peppers, onions, spinach, or mushrooms all taste great mixed in with the sausage or layered under the cheese.