Start your day with a savory, crowd-pleasing breakfast casserole that’s loaded with crispy bacon, hearty breakfast sausage, fluffy eggs and buttery biscuits — all baked together to golden perfection. This easy one-dish recipe is perfect for busy mornings, lazy weekends, brunch gatherings, or breakfast-for-dinner nights. With simple ingredients and just a few steps, it delivers big flavor your whole family will love.
Whether you’re craving a hearty breakfast, meal prepping for the week, or hosting guests, this recipe is a go-to. It also makes a great centerpiece for holidays, potlucks, or cozy weekends at home. With every bite, you get the perfect blend of crispy, cheesy, and comforting — exactly what a breakfast casserole should be.
Ingredients You’ll Need
- 5 thick-cut bacon pieces, chopped
- ½ lb ground breakfast sausage
- 1 small yellow onion, finely chopped
- 2 garlic cloves, minced
- ½ tsp red pepper flakes
- 5 large eggs
- ¼ cup whole milk
- ½ cup shredded Cheddar cheese
- 1 package jumbo buttermilk biscuits (8 biscuits)
- Salt and pepper to taste
How to Make This Breakfast Casserole
- Preheat your oven to 425°F.
- Cook the bacon in a skillet until crisp; drain and set aside.
- Brown the sausage in the same skillet, then add onions, garlic and red pepper flakes; cook until soft.
- In a bowl, whisk eggs and milk, then blend in half the cheddar cheese.
- Layer biscuits in a cast iron skillet or casserole dish.
- Pour the egg mixture over biscuits, top with remaining cheese and crumbled bacon.
- Bake for ~25 minutes until bubbly, puffed, and golden.
Tip: Add your favorite veggies, swap cheeses, or serve with salsa and sour cream for a fun twist.
Notes & Serving Suggestions
- This casserole is perfect for feeding a crowd or making ahead for meal prep.
- Try mixing in chopped peppers or spinach for extra color and flavor.
- Pair with fresh fruit, coffee, or a simple green salad for a balanced brunch spread.
Breakfast Biscuit Casserole with Sausage & Bacon
- Total Time: 40 minutes
- Yield: 6–8 servings 1x
Description
This easy breakfast biscuit casserole is loaded with fluffy biscuits, savory sausage, crispy bacon, eggs, and melted cheese. Baked in a cast iron skillet, it’s the perfect make-ahead breakfast for brunch, holidays, or breakfast for dinner.
Ingredients
- 5 pieces of thick cut bacon (chopped)
- 1/2 lb. ground breakfast sausage
- 1 small yellow onion (finely chopped)
- 2 cloves garlic (minced)
- 1/2 teaspoon red pepper flakes
- 5 eggs
- 1/4 cup whole milk
- 1/2 cup shredded Cheddar cheese
- 1 package refrigerated jumbo buttermilk biscuits (8 biscuits-16 oz)
- salt and pepper to taste
Instructions
- Preheat oven to 425 degrees F
- Chop up onion and garlic
- Chop up bacon and add to 10-12” cast iron skillet on medium heat. Cook until crispy and set aside on paper towels.
- Now add the breakfast sausage to brown. once almost fully cooked add in the onions and garlic, and the red pepper flakes
- Turn off the heat, and remove the sausage and onion mixture into a bowl to cool down
- In another bowl, mix your eggs and milk. Season with salt and pepper.
- Stir in 1/2 of your cheese into the eggs, and gradually start adding your warm sausage and onion mixture into the eggs, stirring often until the entire mixture is blended. (this is so the sausage wont curdle the eggs out of the pan.)
- Next open your biscuit package and fill the bottom of the cast iron pan with the 8 biscuits (7 around and 1 in the middle)
- Pour the egg and sausage mixture over the biscuits
- Top with the remaining cheddar cheese and the crumbled bacon
- Put cast iron pan onto baking sheet and place in 425 oven for 25 minutes until puffed and golden brown. Serve warm.
Notes
-
For extra flavor, use sharp cheddar or pepper jack cheese.
-
Add sautéed peppers or spinach for a veggie boost.
-
Let the casserole rest for 5 minutes before slicing for clean cuts.
- Prep Time: 15
- Cook Time: 25
- Category: Breakfast
- Method: Baking
- Cuisine: American
Frequently Asked Questions
Can I make this breakfast biscuit casserole ahead of time?
Yes! You can fully assemble the casserole, cover it tightly, and refrigerate it overnight. In the morning, let it sit at room temperature for about 15 minutes before baking as directed.
Do I need to cook the sausage and bacon before baking?
Yes. Cooking the sausage and bacon first ensures they’re fully cooked and helps remove excess grease so the casserole doesn’t become soggy.
What type of biscuits work best for this recipe?
Refrigerated buttermilk biscuits work best. Cut them into quarters so they bake evenly and soak up the egg mixture without becoming dense.
Can I use a different cheese?
Absolutely. Cheddar is classic, but Colby Jack, Monterey Jack, pepper jack, or a sharp white cheddar all work well in this breakfast casserole.
How do I know when the casserole is done baking?
The casserole is done when the center is set, the eggs are fully cooked, and the top is golden and bubbly. A knife inserted into the center should come out mostly clean.
Can I freeze breakfast biscuit casserole?
Yes. Let the casserole cool completely, then wrap it tightly in plastic wrap and foil. Freeze for up to 2 months. Thaw overnight in the refrigerator and reheat in the oven until warmed through.
How should I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or oven.
Can I add vegetables to this recipe?
Definitely. Diced bell peppers, sautéed mushrooms, spinach, or onions are great additions. Be sure to cook or drain vegetables first to avoid excess moisture.
Is this breakfast casserole good for holidays or brunch?
Yes! This recipe is perfect for feeding a crowd and is ideal for holidays, brunches, baby showers, or breakfast-for-dinner nights.
Can I make this without a cast iron skillet?
Yes. You can use a greased 9×13 baking dish or any oven-safe casserole dish. Baking time may vary slightly, so check for doneness in the center.
Want More Easy Breakfast Inspiration?
If you loved this Sausage, Bacon & Egg Biscuit Casserole, you’ll want to check out other hearty, easy breakfast recipes that make mornings delicious without the fuss.
Serve this up, share it with family and friends, and don’t forget the photo — your next favorite breakfast memory starts here!
