Cheddar Bay Biscuit and Egg Casserole bakes up with crisp, golden biscuit edges, a tender egg custard, and pockets of savory sausage in every scoop. The garlic herb butter on top gives it that unmistakable biscuit-shop finish, but the real payoff is how the biscuit pieces soak up just enough egg to turn soft underneath while staying puffed on top.
The trick is underbaking the biscuits before they go into the casserole. That sounds backwards, but it keeps them from drying out once the egg mixture hits the pan and the whole dish goes back into the oven. The sausage needs to be cooked first, and the garlic butter should go on the second the casserole comes out so it melts into every crack and ridge instead of sitting on top.
Below, I’ve included the timing that keeps the biscuits from getting bready, the ingredient swaps that still hold the casserole together, and the reheating method that brings back the best texture without turning the eggs rubbery.
The biscuits stayed fluffy on top but soaked up the egg underneath, and the garlic butter brushed on at the end made the whole pan taste like the best part of brunch.
Like these Cheddar Bay Biscuit and Egg Casserole layers? Save the garlic butter biscuit breakfast bake for your next brunch or make-ahead morning.
The Mistake That Makes Biscuit Breakfast Casseroles Dense
The most common failure in a biscuit breakfast casserole is letting the biscuits fully bake before they ever meet the eggs. Fully baked biscuit pieces go dry and crumbly in the oven a second time, and they don’t drink in the custard evenly. Underbaking them by about five minutes keeps the centers soft enough to finish in the casserole without losing that biscuit texture.
The other trap is a casserole that turns heavy because the egg mixture is too thick or the pan is overcrowded with greasy sausage. Whisk the eggs and milk until they’re completely smooth, then let the sausage drain before it goes into the dish. You want the custard to settle around the biscuit pieces, not sit on top like a thick omelet.
- Underbaked biscuit pieces finish cooking in the custard and stay tender underneath.
- Cooked sausage adds seasoning and structure, but it needs to be drained so the casserole doesn’t turn slick.
- Whole milk gives the eggs enough richness to set softly instead of baking into a rubbery layer.
What Each Ingredient Is Doing in This Biscuit Bake
- Red Lobster Cheddar Bay biscuit mix — This is the backbone of the dish. The garlic-herb seasoning is built in, and that packet of butter at the end is what makes the casserole taste like the biscuits you’re expecting instead of just a generic egg bake.
- Breakfast sausage — It brings salt, fat, and savoriness that balances the cheese and biscuit mix. You can swap in crumbled bacon or turkey sausage, but the flavor will shift; bacon gives more smokiness, while turkey sausage makes the casserole a little leaner.
- Eggs and whole milk — These create the custard that binds everything together. Whole milk matters here because it keeps the texture soft and rich; lower-fat milk works in a pinch, but the casserole won’t set as tender.
- Sharp cheddar — It melts into the eggs and adds a sharper bite that keeps the dish from tasting flat. Pre-shredded is fine, but freshly shredded melts more smoothly.
- Garlic powder — It reinforces the biscuit seasoning without making the casserole taste raw or overly salty. If your biscuit mix already tastes very bold, you can reduce it slightly, but don’t skip the garlic entirely.
How to Keep the Biscuit Tops Puffy and the Custard Tender
Underbake the Biscuits First
Mix and bake the biscuits just until they’ve set, but stop before they get deeply golden. That short first bake gives them enough structure to hold their shape in the casserole, while leaving the centers soft enough to absorb the egg mixture. If they come out too browned at this stage, they’ll taste dry after the second bake.
Build the Pan in Layers
Break the biscuits into pieces and spread them across the bottom of the greased dish, then scatter the sausage over the top. That layering keeps the biscuit pieces from floating all over the pan and helps the egg settle into the gaps. Pour the custard evenly so every corner gets enough moisture; dry corners usually mean the egg mixture wasn’t distributed well.
Bake Until the Center Just Sets
The casserole is done when the edges are golden and the center no longer sloshes when you move the pan. A slight jiggle in the middle is fine because it will finish setting as it rests. If you wait until the whole center looks firm and dry in the oven, the eggs will overbake on the way to the table.
Brush on the Garlic Butter Right Away
As soon as the casserole comes out, brush the reserved garlic herb butter over the top. The heat from the pan melts it instantly and lets it soak into the biscuit tops instead of sitting in greasy patches. This is the step that gives the casserole its Cheddar Bay finish, so don’t let the pan cool first.
How to Adapt This for Different Mornings
Make It Bacon and Cheddar Instead
Swap the sausage for cooked, crumbled bacon. The casserole gets a smokier, saltier edge and loses a little of the sausage’s richness, so I’d keep the cheddar full-strength. This version is great if you want a sharper, more breakfast-counter flavor.
Make It Gluten-Free
Use a gluten-free biscuit mix that bakes up in chunks with some structure, not a batter-style mix. The goal is still to have biscuit pieces that hold their shape after the egg goes in. If the mix is softer than the original, shorten the first bake a touch and watch for set edges rather than relying on color alone.
Lighten It Up With Turkey Sausage
Turkey sausage works well, but it brings less fat and a milder flavor than pork. Add a little extra black pepper and don’t skip draining the sausage, since leaner sausage can still release moisture that makes the casserole watery. The texture stays close; the flavor just lands a little cleaner.
Storage and Reheating
- Refrigerator: Store leftovers covered for up to 4 days. The biscuit pieces will soften a bit as they sit, but the casserole still reheats well.
- Freezer: Freeze individual portions tightly wrapped for up to 2 months. Thaw in the refrigerator before reheating so the eggs warm evenly instead of turning watery in the middle.
- Reheating: Warm in a 325°F oven, covered loosely with foil, until heated through. The biggest mistake is blasting it in the microwave too long, which makes the eggs rubbery and dries out the biscuit tops.
Answers to the Questions Worth Asking
Cheddar Bay Biscuit and Egg Casserole
Ingredients
Equipment
Method
- Prepare the Cheddar Bay biscuit mix according to package directions, but bake for 10 minutes less than directed so the pieces are set and not fully golden.
- Let the underbaked biscuits cool briefly, then break them into pieces.
- Preheat the oven to 375°F and grease a 9x13 dish.
- Arrange the underbaked biscuit pieces across the bottom of the dish.
- Scatter the sausage crumbles evenly over the biscuit pieces.
- Whisk the eggs, milk, garlic powder, salt, and black pepper until smooth.
- Stir in the shredded cheddar, then pour the mixture over the casserole so it settles around the biscuits.
- Bake for 35–40 minutes until the eggs are set and the biscuits are golden.
- Brush the reserved garlic herb butter over the hot casserole immediately, then serve.