There’s something deeply comforting about a warm, bubbling breakfast casserole — flaky biscuit pieces soaked in a silky egg custard, savory browned sausage scattered throughout, a blanket of melted cheese, and that rich sausage gravy drizzled on top. This Breakfast Casserole with Sausage and Biscuits is the kind of recipe that smells like a weekend morning even when you make it on a weekday. It’s easy to assemble, forgiving for busy cooks, and feeds a crowd with very little fuss. Serve it with a crisp green salad or fresh fruit for balance, and you’ll have a hearty brunch or family-style breakfast that disappears fast. If you like the idea of biscuits in a bake but want a flakier twist, try my take on a croissant version for a different texture: croissant breakfast casserole.
Why You’ll Love This Breakfast Casserole with Sausage and Biscuits
- Classic comfort flavors: savory breakfast sausage, cheesy richness, and tender biscuits make each bite satisfying.
- Easy to assemble: minimal prep, simple ingredients, and straightforward steps make it weeknight- and brunch-friendly.
- Crowd-pleaser: feeds multiple people from a single 9×13-inch pan — great for potlucks or family meals.
- Versatile: use your favorite shredded cheese or milk type without changing the basic method.
- Make-ahead friendly: you can assemble ahead and bake in the morning for effortless hosting.
- Balanced texture: soft egg custard, pillowy biscuit pieces, and the slight crunch from golden edges.
- Comfort with a saucy kick: the sausage gravy on top adds a homey, restaurant-style finish.
What Is Breakfast Casserole with Sausage and Biscuits?
This dish is a layered breakfast bake built from quartered canned biscuits, cooked breakfast sausage, an egg-and-milk custard, shredded cheese, and a finishing pour of sausage gravy. The cooking method is oven-baked in a single 9×13-inch pan until the eggs are set and the biscuits turn golden on top. Taste-wise, expect savory, slightly salty sausage flavors balanced by creamy eggs and melty cheese; the gravy adds a rich, seasoned finish that ties everything together. It’s commonly served for weekend brunches, holiday breakfasts, or any time you want a hearty, shareable morning meal. The overall vibe is simple, homey comfort food — exactly the kind of thing that feels indulgent without being complicated.
Ingredients for Breakfast Casserole with Sausage and Biscuits
For the Base
- 1 can refrigerated biscuits (8–10), quartered
- 1 pound breakfast sausage
For the Egg Custard
- 6 large eggs
- 1 cup milk (whole or 2%)
- Salt and pepper to taste
For the Topping
- 1 cup shredded cheese (cheddar or preferred)
- 1 packet sausage gravy mix (or 1–1½ cups homemade gravy)
Ingredient Notes (Substitutions, Healthy Swaps)
- Milk: Use whole milk for the richest custard. For a lighter option, 2% works fine. Non-dairy milks (oat or full-fat almond) can be used, but the custard may be slightly less rich.
- Cheese: Cheddar is classic, but Monterey Jack or Colby work well. For a sharper flavor, try extra-sharp cheddar. Use a pre-shredded blend if you prefer convenience.
- Biscuits: The recipe uses canned refrigerated biscuits for ease. For a flakier texture, you can use large biscuits (choose 8 instead of 10) but keep the quartering step the same.
- Sausage: Use your preferred breakfast sausage (mild, hot, or sage-flavored). If you need a lower-fat option, choose a leaner breakfast sausage or a turkey breakfast sausage — it changes the flavor slightly but keeps the method identical.
- Sausage gravy: Use the packet for convenience or 1–1½ cups homemade sausage gravy for a fresher flavor. If using packet mix, prepare according to the package directions.
Step-by-Step Instructions
Follow these five clear steps using only the ingredients and directions provided.
Step 1 – Preheat and Prep the Dish
Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
Visual cue: The baking dish should be evenly greased so the biscuits don’t stick and the casserole slides out cleanly.
Step 2 – Cook the Sausage
In a skillet over medium heat, cook the breakfast sausage until browned. Drain excess fat.
Pro cue: Break the sausage into small crumbles as it cooks for even distribution through the casserole. Drain on paper towels to remove excess grease — too much fat can leave the casserole soggy.
Step 3 – Make the Sausage Gravy
Prepare the sausage gravy according to packet instructions (or have 1–1½ cups homemade gravy ready).
Visual cue: The gravy should be thick enough to coat the back of a spoon but still pourable.
Step 4 – Whisk the Eggs and Layer the Dish
In a bowl, whisk together 6 large eggs and 1 cup milk; season with salt and pepper to taste. Cut each canned biscuit into quarters and layer them in the prepared baking dish. Sprinkle the cooked sausage evenly over the biscuits. Pour the egg and milk mixture over the biscuits and sausage, allowing it to soak for a minute.
Pro cue: Press the biscuit pieces lightly so some are submerged and some peek through — this creates varying textures in the finished bake. Letting the custard soak for a minute helps the biscuits start to absorb the liquid for an even custard.
Step 5 – Add Cheese, Gravy, and Bake
Sprinkle shredded cheese on top, then pour the prepared sausage gravy over the whole casserole. Bake for 30–35 minutes until eggs are set and biscuits are golden. Allow to cool slightly before slicing and serving.
Visual cue: The center should be set without a jiggly wobble, the edges golden, and the gravy warmed through. Cool 10 minutes before slicing for cleaner pieces.
Pro cue: If the top is browning too quickly, tent loosely with foil for the last 10 minutes.
Pro Tips for Success
- Brown the sausage thoroughly: well-browned sausage has more flavor and texture than pale, undercooked meat.
- Drain excess grease: removing fat after cooking prevents a greasy casserole and helps the casserole set properly.
- Don’t overbeat the eggs: whisk until combined — overdoing it adds air, which can make the custard less silky.
- Let it rest before slicing: cooling 8–12 minutes helps the custard firm up for cleaner slices.
- Even distribution: quarter the biscuits and scatter them to prevent clumps of dough in one area.
- Cheese timing: sprinkling cheese before the gravy helps it melt into the custard; if you prefer a cheesier top, add a little extra cheese for the final 5 minutes of baking.
- Watch baking time: ovens vary; check at 25 minutes and then every 5 minutes until the center is set.
- Avoid sogginess: if you prefer a firmer texture, reduce the custard soak time slightly or use slightly less milk.
Flavor Variations (OPTIONAL)
- Spicy Version: Add a diced jalapeño to the cooked sausage or use a spicy breakfast sausage for heat without changing other ingredients.
- Extra-Cheesy (OPTIONAL): Increase shredded cheese to 1½ cups and sprinkle an extra ¼ cup on top for a gooier finish.
- Herb-Forward (OPTIONAL): Stir 1 teaspoon dried chives or 1 tablespoon fresh chopped parsley into the egg mixture for a fresh note.
- Lighter Swap (OPTIONAL): Use turkey breakfast sausage and 2% milk to reduce fat — keep other measurements the same.
- Gravy-Down (OPTIONAL): For a less saucy top, spoon half the gravy under the cheese and reserve the rest for serving on the side.
- Single-Serve Twist (OPTIONAL): Bake in individual ramekins for portion control; adjust bake time down slightly and watch for set centers.
Serving Suggestions
- Classic sides: Serve with fresh fruit salad, roasted potatoes, or a simple mixed green salad to cut through the richness.
- Brunch platter: Add biscuits and jam, sliced tomatoes, and a pitcher of coffee for a relaxed brunch spread.
- Holiday meal: Include this casserole on a holiday breakfast table alongside pastries and orange juice.
- On-the-go: Slice into squares and serve on breakfast plates with a dollop of extra warmed sausage gravy.
- Kid-friendly plating: Pair squares with cut fruit and a small container of syrup or ketchup for picky eaters.
- Inspiration: If you love handheld breakfast ideas, try serving a smaller portion alongside savory sliders for variety — I sometimes pair it with a mini slider recipe like these tasty breakfast egg sausage sliders for a playful brunch combo.
Make-Ahead, Storage & Reheating
- Make-ahead: Assemble the casserole up to the point of adding cheese and gravy, cover tightly, and refrigerate overnight. Add cheese and gravy just before baking to keep the top fresh. If fully assembled and refrigerated, allow an extra 5–10 minutes of baking time.
- Refrigerator storage: Store cooled leftovers in an airtight container for up to 3–4 days.
- Reheating methods:
- Oven: Reheat individual slices at 350°F for 10–15 minutes until warmed through.
- Microwave: Heat single servings in 30-second bursts until heated; be aware the biscuit exterior may become softer.
- Texture changes: Custard firms as it cools; reheating will soften it again but may slightly change the texture. The biscuits won’t be as crisp as freshly baked.
Storage and Freezing Instructions
- Freezing assembled: This casserole can be frozen after baking. Cool completely, wrap tightly with plastic wrap and foil, and freeze for up to 2 months.
- Freezing portions: Slice into portions and freeze individually on a tray, then transfer to a freezer-safe container for easier reheating.
- Thawing and reheating: Thaw in the refrigerator overnight and reheat in a 350°F oven for 15–25 minutes until heated through. If reheating from frozen, add extra time and cover with foil to prevent overbrowning.
- If you prefer not to freeze: Consider freezing only the cooked sausage and biscuits separately (unbaked or baked) to preserve texture, then assemble and bake fresh — this maintains the best texture.
- Note: Freezing is recommended over refrigerating for longer-term storage; however, very saucy or gravy-heavy bakes can separate slightly after freezing, so expect a minor change in texture.
Nutrition Facts (Per Serving)
| Calories | Protein | Carbs | Fat | Fiber | Sodium |
|———|——–|——|—–|——|——-|
| 520 kcal | 24 g | 28 g | 34 g | 1 g | 1100 mg |
Nutrition values are estimates and may vary depending on ingredients and portion sizes.
FAQ About Breakfast Casserole with Sausage and Biscuits
Q: Why is my casserole watery in the center?
A: Most often from underbaked eggs or excess grease from the sausage. Make sure to drain the sausage well and bake until the center is set with no jiggle.
Q: Can I use refrigerated dough other than biscuits?
A: You can try croissant or other rolls, but results vary; the provided recipe uses canned biscuits to achieve the intended texture.
Q: How do I know when the eggs are fully cooked?
A: The center should be set with only a tiny wobble; a knife inserted near the center should come out clean or with moist custard, not runny egg.
Q: Can I skip the gravy?
A: Yes — the casserole will still be delicious with just cheese on top. The gravy adds richness and a classic finish but isn’t required.
Q: How long can leftovers be kept in the fridge?
A: Store in an airtight container for up to 3–4 days. Reheat thoroughly before serving.
Q: Can I make this gluten-free?
A: Use a gluten-free biscuit dough if available and a gluten-free gravy mix. The rest of the ingredients are naturally gluten-free.
Notes
- Slice with a sharp knife and wipe between cuts for neat portions.
- Add a pinch of black pepper to the egg mixture for a subtle warming note.
- For a prettier top, sprinkle a little extra cheese in the final 5 minutes of baking.
- Serve warm with a small pitcher of extra heated gravy for guests who like more sauce.
Breakfast Casserole with Sausage and Biscuits
- Total Time: 50 minutes
- Yield: 8 servings
- Diet: Omnivore
Description
A warm and comforting breakfast casserole made with flaky biscuits, savory sausage, and a rich egg custard, topped with melted cheese and sausage gravy.
Ingredients
- 1 can refrigerated biscuits (8–10), quartered
- 1 pound breakfast sausage
- 6 large eggs
- 1 cup milk (whole or 2%)
- Salt and pepper to taste
- 1 cup shredded cheese (cheddar or preferred)
- 1 packet sausage gravy mix (or 1–1½ cups homemade gravy)
Instructions
- Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- Cook the breakfast sausage in a skillet over medium heat until browned. Drain excess fat.
- Prepare the sausage gravy according to packet instructions (or have homemade gravy ready).
- Whisk together eggs and milk; season with salt and pepper. Layer the quartered biscuits in the baking dish, sprinkle cooked sausage evenly, and pour the egg mixture over.
- Add shredded cheese on top, pour the sausage gravy over the casserole, and bake for 30–35 minutes until eggs are set and biscuits are golden.
Notes
Let the casserole rest for 8–12 minutes before slicing for cleaner pieces.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American