Warm, comforting, and ridiculously easy to assemble, this Biscuits and Gravy Hashbrown Breakfast Casserole turns classic Southern breakfast flavors into a hands-off casserole perfect for feeding a crowd. It layers thawed hashbrowns, torn refrigerated biscuits, browned breakfast sausage and cheddar, then locks everything together with an egg-and-gravy custard — bake it for brunch, a holiday morning, or a lazy weekend breakfast you can prep ahead.
Why you’ll love this dish
This casserole hits a sweet spot: familiar flavors (sausage gravy and biscuits) combined with a convenient, bake-and-forget format. It’s budget-friendly, kid-approved, and scales well: double it for a crowd or bake in smaller pans for portable portions.
“I made this for a family wake and everyone kept going back for seconds — comfort food that travels well and stays juicy.”
If you enjoy hearty, make-ahead brunch bakes, you might also like a riff on American comfort foods such as cheeseburger French fry casserole, which uses a similar one-dish approach to feed a crowd.
Step-by-step overview
This recipe is straightforward: brown the sausage, tear the biscuits, layer with thawed hashbrowns and cheese, whisk eggs with milk and prepared sausage gravy, pour the mixture over the layered pan, and bake until set and golden. You’ll cover the dish for most of the bake time to trap steam (which finishes the interior) and then uncover to brown the top. Rest briefly before serving so slicing holds together.
What you’ll need
- 1 package refrigerated biscuits (8-count), torn into pieces (use flaky or buttermilk for different textures)
- 1 pound breakfast sausage (mild or spicy), crumbled and cooked
- 1 package (30 oz) frozen hashbrowns, thawed (shredded or diced both work)
- 2 cups shredded cheddar cheese, divided (sharp cheddar gives more bite)
- 4 large eggs
- 2 cups milk (whole milk gives a richer custard; 2% works fine)
- 2 cups prepared sausage gravy (store-bought or homemade)
- 1/4 cup chopped green onions, optional, for garnish
- Salt and pepper to taste
Notes: If you prefer a lighter version, swap half-and-half for milk (richer) or use turkey sausage for lower fat. If fresh potatoes are used, par-cook them (see Variations).
Step-by-step instructions
- Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking dish.
- In a skillet over medium-high heat, brown the breakfast sausage for 6–8 minutes, breaking it into bite-sized pieces. Drain excess fat and season lightly with black pepper.
- In a medium bowl, whisk together the eggs and milk until smooth. Stir in the prepared sausage gravy. Taste the mixture and add salt only if needed — the sausage and gravy are often salty already.
- Spread the thawed hashbrowns evenly in the prepared baking dish. Scatter the torn biscuit pieces over the potatoes. Sprinkle half of the cheddar cheese across the top. Add the browned sausage in an even layer.
- Pour the egg–gravy mixture over the layered ingredients, pressing lightly with a spatula so the custard soaks down. Sprinkle the remaining cheese on top.
- Cover the dish tightly with aluminum foil and bake for 30 minutes. Remove the foil and continue baking 15–25 minutes more, until the center is set, the edges are bubbling, and the top is golden. The internal temperature should reach about 160°F for a fully set egg casserole.
- Let the casserole rest 10 minutes before slicing. Garnish with chopped green onions if desired and serve warm.
Best ways to enjoy it
This casserole is hearty enough to be the star of a brunch table. Serve with:
- Simple fresh fruit (grapes, melon) to cut the richness
- A crisp green salad with lemon vinaigrette for balance
- Pickled jalapeños or hot sauce on the side for spice lovers
- Individual servings with a dollop of sour cream or a spoonful of extra sausage gravy
For a different meal vibe, pair the buffet with warm biscuits and jam, or plate with roasted vegetables for brunch-to-dinner flexibility.
Storage and reheating tips
Refrigeration: Cool the casserole to room temperature, cover tightly, and refrigerate for up to 3–4 days. Reheat single portions in the microwave (1–2 minutes depending on power) or reheat the whole dish in a 350°F oven until warmed through (about 20–30 minutes covered, then uncovered 5–10 minutes to refresh the top).
Freezing: To freeze, bake as directed, cool completely, then wrap tightly with plastic wrap and foil, or transfer to a freezer-safe container. Freeze for up to 2 months. Thaw overnight in the refrigerator and reheat at 350°F until hot in the center (about 30–40 minutes).
Food safety: Because this casserole contains eggs and cooked meat, reheat to an internal temperature of 165°F for safety and to maintain quality. When storing, refrigerate within two hours of baking.
Helpful cooking tips
- Thaw hashbrowns completely and squeeze out excess water if they seem watery; too much moisture can make the casserole soggy.
- Tear biscuits into varied-size pieces so you get fluffy pockets and slightly crusty bits.
- If your gravy is very thick, thin it with a splash of milk before mixing with eggs so the custard flows and soaks evenly.
- Use a glass or ceramic 9×13 pan for even baking; metal pans brown faster. If using dark metal, reduce oven temp by 25°F.
- Let it rest before slicing — that holding period firms the custard and yields cleaner portions.
Creative twists
- Southwestern: Stir in a cup of roasted green chiles, swap cheddar for pepper jack, and top with cilantro.
- Veggie-forward: Replace sausage with seasoned crumbled tempeh or sautéed mushrooms and spinach for a vegetarian option (use vegetarian gravy).
- Potato swap: Use 4 cups shredded fresh potatoes that have been par-cooked and patted dry.
- Bacon & smoked cheddar: Substitute bacon for sausage and use smoked cheddar for a deeper flavor.
- Make it Tex-Mex by adding taco seasoning and serving with pico de gallo — if you enjoy bolder handheld flavors, try pairing components inspired by beef and cheese chimichangas for a fusion brunch experience.
Common questions
Q: Can I make this ahead of time?
A: Yes. Assemble the casserole up to the point of baking, cover tightly, and refrigerate up to 24 hours. Add 10–15 minutes to the covered baking time when starting from cold.
Q: Can I use refrigerated biscuit dough alternatives?
A: Yes. Canned biscuit dough is convenient, but flaky or buttermilk biscuits give different textures. You can also cube store-bought biscuit-style bread or use canned crescent dough (texture will differ).
Q: Is it safe to freeze before baking?
A: You can freeze assembled, unbaked casseroles. Wrap tightly and freeze up to 2 months. Thaw in the refrigerator overnight and bake as directed, adding 10–20 minutes to the baking time until the center is set.
Q: What if my casserole is too runny after baking?
A: If the custard seems under-set, return it to the oven uncovered at 350°F and bake until set. Make sure hashbrowns were not overly wet and that the egg-to-liquid ratio is correct.
Q: Can I make this vegetarian?
A: Yes. Use a plant-based sausage and vegetarian gravy, and consider adding extra vegetables (bell peppers, mushrooms, spinach) to boost flavor and texture.
If you want more casserole-style comfort meals that feed a crowd, explore other hearty one-dish recipes like the cheeseburger French fry casserole for inspiration.
Print
Biscuits and Gravy Hashbrown Breakfast Casserole
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Total Time: 70 minutes
- Yield: 8 servings
- Category: Breakfast
- Method: Baking
- Cuisine: Southern
- Diet: None
Description
A hearty and comforting casserole combining Southern breakfast favorites, perfect for brunch or feeding a crowd.
Ingredients
- 1 package refrigerated biscuits (8-count), torn into pieces
- 1 pound breakfast sausage, crumbled and cooked
- 1 package (30 oz) frozen hashbrowns, thawed
- 2 cups shredded cheddar cheese, divided
- 4 large eggs
- 2 cups milk
- 2 cups prepared sausage gravy
- 1/4 cup chopped green onions, optional
- Salt and pepper to taste
Instructions
- Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a skillet over medium-high heat, brown the breakfast sausage for 6–8 minutes.
- In a medium bowl, whisk together the eggs and milk until smooth. Stir in the sausage gravy.
- Spread the hashbrowns in the baking dish, scatter biscuit pieces on top, sprinkle with half the cheese, and add the sausage.
- Pour the egg-gravy mixture over the layers and press down lightly.
- Sprinkle remaining cheese on top, cover with foil, and bake for 30 minutes.
- Remove foil and continue baking for another 15–25 minutes until set and golden.
- Let rest for 10 minutes before slicing, garnishing with green onions if desired.
Notes
For a lighter version, swap milk for half-and-half or use turkey sausage. Make sure to thaw hashbrowns completely before use.