Biscuits & Gravy
Sausage and Egg
Breakfast Casserole
Fluffy biscuits, creamy sausage gravy, scrambled eggs, and melted cheese — all baked into one glorious casserole. The ultimate make-ahead crowd breakfast.
If you searched for a biscuits and gravy breakfast casserole with sausage and eggs — this is the one. The complete recipe with exact amounts, the layering technique that makes it hold together perfectly, and every tip for getting that golden, bubbling, absolutely irresistible result.
This casserole is the breakfast recipe for a crowd. Whether it’s Christmas morning, a family brunch, a holiday gathering, or just a weekend when you want something genuinely special — this is what you make.
🧆 Why This Casserole Is the Best Breakfast Ever
Make It the Night Before
Assemble the night before, refrigerate, and bake in the morning. Your oven does the work while guests arrive.
Feeds 8–10 People
One 9×13 pan feeds a full table. No individual cooking, no standing at the stove — just slice and serve.
Four Layers of Comfort
Biscuits, sausage gravy, scrambled eggs, and melted cheese — every bite has all four, perfectly combined.
Uses Pantry Staples
Refrigerated biscuit dough, sausage, eggs, gravy mix, and cheese. Nothing exotic, everything from your grocery store.
Understanding The Layers
This casserole is built in four distinct layers — each one matters
🍳 How the Casserole is Built
Layer 1: Biscuit Base
Refrigerated biscuit dough pressed flat into the bottom of the pan — creates a pillowy, fluffy base that absorbs all the flavour from the layers above. The bottom crisps slightly while the top stays soft.
Layer 2: Sausage Crumble
Browned, crumbled breakfast sausage spread evenly over the biscuit base. This is the flavour anchor of the whole dish — don’t rush the browning, and don’t drain all the fat (a little remains for the gravy).
Layer 3: Sausage Gravy
Creamy, peppery sausage gravy poured over everything. This soaks into the biscuit base and binds the entire casserole together during baking. The single most important layer for flavour.
Layer 4: Egg & Cheese
Lightly beaten eggs poured over the gravy layer, then a generous blanket of shredded cheese. The eggs set during baking into a custardy layer, and the cheese melts into a golden, bubbly crust on top.
How Many People Are You Feeding?
Select your pan size — ingredients scale automatically.
Step-by-Step Instructions
Eight steps — the exact technique for a casserole that slices cleanly and tastes incredible
Preheat Oven & Prep the Pan
Preheat oven to 350°F (175°C). Grease a 9×13 inch baking dish with butter or cooking spray — get into the corners and up the sides. A well-greased pan is what lets you lift out clean, beautiful slices rather than having the casserole stick and fall apart.
Press Biscuit Dough Into the Base
Open 2 tubes of refrigerated biscuit dough (16 oz total). Separate the biscuits and press them flat with your hands into the bottom of the pan — they should cover the entire base in a single, even layer. Press the seams together so there are no gaps. The biscuit layer will puff up during baking and become the foundation of the casserole.
Brown and Crumble the Sausage
In a large skillet over medium-high heat, cook 1 lb of breakfast sausage. Break it into small pieces as it cooks — you want fine, even crumbles, not large chunks. Cook until no pink remains and the edges are slightly browned. This browning (the Maillard reaction) is what gives the sausage its deep flavour. Don’t drain all the fat — leave 2 tablespoons in the pan for the gravy.
Make the Sausage Gravy
With the sausage still in the skillet and the 2 tablespoons of fat remaining, sprinkle ¼ cup of all-purpose flour over the sausage and stir to coat everything. Cook 1 minute to remove the raw flour taste. Add 2 cups of milk gradually, stirring constantly. The mixture will thicken into gravy in 3–4 minutes. Season generously with salt and lots of black pepper — gravy needs more seasoning than you think.
Layer Sausage and Gravy Over Biscuits
Spread the sausage crumbles evenly over the biscuit base, then pour the gravy over the top, spreading to cover every inch of the surface. The gravy will seep down between the biscuits — this is exactly what you want. Use a spatula to spread it to the edges and into the corners.
Beat and Season the Eggs
In a bowl, whisk 6 large eggs with ¼ cup milk, ½ teaspoon salt, ¼ teaspoon black pepper, and optional ½ teaspoon garlic powder. Whisk until completely uniform — no streaks of white or yolk. Pour the egg mixture evenly over the gravy layer. Use a fork to gently move the surface to help the eggs settle into every gap.
Add the Cheese and Bake
Scatter 1½ cups of shredded cheese evenly over the top — cheddar, Colby Jack, or a mix all work beautifully. The more generously you cheese it, the better. Bake at 350°F for 40–45 minutes until the edges are golden, the cheese is melted and slightly browned in spots, and a knife inserted in the centre comes out clean (no liquid egg).
Rest, Then Slice and Serve
Remove from the oven and rest for 10 minutes before cutting. This rest time is crucial — the layers need to set before cutting or the casserole will fall apart into a delicious mess rather than holding its shape in clean slices. Use a sharp knife and a wide spatula to serve. Garnish with fresh chives or parsley if desired.
4 Delicious Variations
Same casserole method — different flavour profiles. Click each tab for full details.
Classic Biscuits & Gravy Casserole 🧆
“The original — everything you love about biscuits and gravy in one baked pan”
What makes it classic
- Plain breakfast sausage (not spicy)
- Simple white sausage gravy — milk, flour, pepper
- Refrigerated biscuit dough base
- Sharp cheddar cheese blanket on top
- Extra black pepper in both the gravy and the egg layer
Key tips for the classic
- Season the gravy generously — this is where the flavour lives
- Don’t skip the 10-minute rest after baking
- Serve with hot sauce or extra pepper on the side
- Garnish with fresh chives for colour and freshness
Spicy Jalapeño Sausage Casserole 🌶️
“For when you want that breakfast with a kick — this version makes mornings exciting”
What changes
- Use HOT breakfast sausage instead of regular
- Add 1–2 diced jalapeños to the sausage while browning
- Add ½ tsp cayenne to the gravy
- Use pepper jack cheese instead of cheddar
- Drizzle of hot sauce before baking (optional)
Serving suggestions
- Sour cream on the side to cool the heat
- Sliced pickled jalapeños as a garnish
- Fresh cilantro instead of chives
- A squeeze of lime over each serving
Three-Cheese Loaded Casserole 🧀
“Triple the cheese, maximum melt, over-the-top indulgence for special occasions”
What changes
- Mix cheese INTO the egg layer as well as on top
- Use a three-cheese blend: cheddar + Gruyère + mozzarella
- Add cream cheese to the gravy for extra richness
- Double the cheese topping to 3 cups
- Top with a parmesan crust for golden crunch
Why it works
- Gruyère melts beautifully and adds nutty depth
- Mozzarella creates those gorgeous cheese pulls
- Parmesan on top becomes a crispy golden crust
- Cream cheese in the gravy makes it silky and rich
Vegetarian Mushroom & Herb Casserole 🌿
“All the comfort, none of the meat — satisfying enough that no one misses the sausage”
What changes
- Replace sausage with 2 cups cremini mushrooms, diced + browned
- Add 1 diced onion and 2 garlic cloves to the mushrooms
- Season with smoked paprika, thyme, and sage for depth
- Make gravy with 2 tbsp butter instead of sausage fat
- Add diced bell peppers and spinach to the egg layer
Make it hearty
- Brown the mushrooms very well — don’t rush this step
- Add a tbsp of soy sauce to the mushrooms for umami
- Use sharp cheddar + Gruyère for the cheese layer
- Add sun-dried tomatoes for extra flavour punch
⏱️ Make-Ahead & Storage Guide
This casserole was designed to be made ahead — here’s exactly how to do it.
Assemble completely, cover, and refrigerate
Complete all 7 steps including the cheese topping. Cover tightly with cling film or foil and refrigerate overnight (up to 12 hours). Do not bake yet.
Remove from fridge 30 min before baking
Take the covered casserole out of the fridge 30 minutes before baking to take the chill off. Cold casserole straight into the oven extends baking time and creates uneven cooking.
Add 5–10 extra minutes for a chilled casserole
If baking from a cold start, add 5–10 minutes to the cook time (45–55 minutes total). Always check with a knife in the centre — it should come out without liquid egg.
Keeps 4 days in fridge · Reheat at 325°F 15 min
Store leftover slices in an airtight container. Reheat individual slices at 325°F for 12–15 minutes (oven) or 2 minutes (microwave). The oven method preserves the texture much better.
Pro Tips for Perfection
Brown the sausage properly
Don’t just cook it through — let it get genuinely browned. Those browned edges are where all the deepest flavour lives.
Season the gravy generously
Sausage gravy needs a lot of black pepper and salt. Taste it before layering — it should be boldly seasoned because it gets diluted by the eggs and biscuits.
Rest for 10 minutes — no exceptions
The layers need to set before you cut. Slice too early and you get a delicious mess instead of clean, beautiful squares.
Shred your own cheese
Pre-shredded cheese contains anti-caking agents that prevent it from melting as smoothly. A block of cheddar, freshly grated, melts into a silkier, more beautiful top.
Don’t drain all the sausage fat
Leave 2 tablespoons in the pan for the gravy. The fat is what makes sausage gravy taste like sausage gravy — not plain white sauce.
Check the centre — not the edges
The edges always set first. Insert a knife in the very centre — if liquid egg runs back in, it needs more time. No liquid = done.
FAQs
Can I use homemade biscuits instead of refrigerated dough?
Can I use a packet of gravy mix instead of homemade?
How do I know when the casserole is fully cooked?
Can I freeze this casserole?
Can I double the recipe for a really large crowd?
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