Golden biscuit tops, a creamy egg custard, and savory sausage all bake together in one dish that disappears fast at brunch. The Cheddar Bay biscuit pieces stay tender where they soak up the eggs, but the tops still catch enough heat to turn crisp and brown. That contrast is what keeps this casserole from eating like plain scrambled eggs in a pan.
The trick is baking the biscuit mix underdone before it goes into the casserole. If you fully bake the biscuits first, they turn dry and tough after the second bake. Stopping early gives them a chance to finish in the custard, where they absorb flavor without losing their shape. The garlic herb butter at the end matters too — brush it on while the casserole is hot so it melts into every ridge instead of sitting on top like an afterthought.
Below, I’ll walk through the one step people usually skip, the ingredient choices that actually matter, and a few ways to adapt this for different mornings. If you’ve ever wanted a breakfast casserole with more personality than the usual egg-and-cheese bake, this one earns its place.
The biscuit pieces stayed fluffy on top but soaked up the egg underneath, and the garlic butter on the finish made it taste like brunch from a restaurant. I made it the night before and baked it in the morning with no soggy spots.
Cheddar Bay Biscuit and Egg Casserole is the kind of breakfast bake worth pinning for slow weekends, holiday mornings, and make-ahead brunches.
The Underbaked Biscuit Move That Keeps This Casserole Soft Instead of Dry
Most biscuit casseroles go wrong before the eggs even go in. The biscuits are already fully baked, so they spend the second bake drying out instead of absorbing the custard. That leaves you with chewy edges and a middle that tastes more like stale bread than breakfast.
Here, the biscuit mix gets baked just long enough to set. The pieces hold their shape in the dish, but they’re still tender enough to drink in the egg mixture. That’s what gives you those soft pockets inside and the golden, crisp tops on the surface.
- Cheddar Bay biscuit mix — This is the backbone of the casserole, and the seasoning packet brings the garlic-herb flavor that makes the whole dish taste like more than eggs and sausage. Prepare it according to the box, then stop the bake early so it finishes in the custard.
- Breakfast sausage — Cook it first and drain off excess grease, or the casserole can turn oily around the edges. A mild sausage keeps the biscuit flavor front and center, while a hot sausage adds more bite.
- Eggs and whole milk — This is the custard that binds everything together. Whole milk gives a softer, richer set than skim milk, which can bake up a little lean and rubbery.
- Sharp cheddar — Sharp cheddar melts into the custard and gives the casserole a deeper savory note. Pre-shredded works, but freshly shredded melts more smoothly if you have the extra minute.
- Reserved garlic herb butter packet — Brush it on right after baking while the surface is still hot. That’s when it melts into the biscuit tops and gives you the flavor hit that makes the recipe taste finished.
Building the Casserole So the Biscuits Stay Tender
Set the Biscuit Base First
Bake the biscuit mix for 10 minutes less than the package directs, then pull it when it’s set but still pale in spots. If the biscuits are fully baked, they won’t absorb the egg mixture well and they’ll dry out in the oven a second time. Break them into uneven pieces so you get some larger bites and some smaller ones that tuck into the custard.
Whisk the Custard Until It Looks Even
Whisk the eggs, milk, garlic powder, salt, and pepper until the mixture looks completely uniform, then stir in the cheddar. You want the cheese distributed through the custard, not dumped in a mound that melts into one heavy pocket. Pour it slowly over the biscuit pieces so the liquid sinks between them instead of sitting on top.
Bake Until the Center Sets Cleanly
The casserole is done when the edges are puffed and golden and the center no longer looks wet or sloshy when you nudge the pan. If the middle still jiggles like loose custard, give it a few more minutes; if you overbake it, the eggs turn firm and the biscuits lose their softness. Let it rest a few minutes before serving so the custard finishes setting without weeping onto the plate.
Finish With the Garlic Herb Butter
Brush the reserved butter over the top the second it comes out of the oven. The heat melts it into the biscuit ridges and keeps the surface glossy instead of dry. If you wait too long, the butter just sits there and you lose the best part of the finish.
How to Adapt This for a Smaller Crowd or a Different Breakfast Table
Make It Meatless
Skip the sausage and add sautéed mushrooms, spinach, or diced bell pepper instead. The casserole loses a little richness, so the cheddar becomes more important, but you’ll still get a hearty bake with plenty of structure. Cook the vegetables first so they don’t leak water into the custard.
Use Gluten-Free Biscuit Mix
A gluten-free biscuit mix can work here, but you want one that bakes up sturdy rather than cakey. Follow the same underbake-and-finish-in-the-custard method, because gluten-free dough can get dry fast once it’s baked twice. The texture will be a little more delicate, but the flavor still lands well.
Swap in Bacon or Ham
Bacon gives the casserole a smokier finish, while diced ham makes it taste a little more like a holiday breakfast bake. Use the same amount as the sausage, and keep the pieces small so every scoop gets some protein without crowding the biscuits.
Storage and Reheating
- Refrigerator: Store leftovers covered for up to 4 days. The biscuits soften a bit as they sit, but the casserole still reheats well.
- Freezer: It freezes best in individual squares, wrapped tightly and stored in an airtight container for up to 2 months. The texture gets a touch softer after thawing, but it still works for quick breakfasts.
- Reheating: Warm portions in a 325°F oven until heated through, or use the microwave in short bursts. The oven keeps the biscuits from turning rubbery, which is the main problem with blasting this kind of casserole too hard in the microwave.
Answers to the Questions Worth Asking
Cheddar Bay Biscuit and Egg Casserole
Ingredients
Equipment
Method
- Prepare the Red Lobster Cheddar Bay biscuit mix according to the package directions, but bake for 10 minutes less than directed. Stop when the biscuits are set but not fully golden, with a firm, pale-golden surface.
- Preheat the oven to 375°F and grease a 9x13 dish. You should be ready to bake once the oven reaches temperature and the pan is lightly coated for easy release.
- Break the underbaked biscuits into pieces and arrange them across the bottom of the dish. Spread them evenly so they cover the base in an even layer.
- Scatter the cooked, crumbled breakfast sausage over the biscuit pieces. Distribute it throughout so every bite has sausage and egg.
- Whisk the eggs, whole milk, garlic powder, salt, and black pepper until smooth. Whisk until the mixture looks uniform and slightly foamy at the surface.
- Stir in the shredded sharp cheddar and pour the mixture over the casserole. Pour slowly so the custard seeps into the biscuit pieces and settles evenly.
- Bake for 35–40 minutes at 375°F until the eggs are set and the biscuits are golden. Look for a lightly puffed, golden top with no wet center when gently jiggled.
- Brush the reserved garlic herb butter over the hot casserole immediately and serve. The butter should glisten and soak into the biscuit tops for a fragrant finish.
