Dinner

Cheddar Bay Biscuit Egg Breakfast Casserole Recipe

BySophie Carsel February 12, 2026February 12, 2026

Introduction

This Cheddar Bay Biscuit Egg Breakfast Casserole Delight combines the classic savory flavors of cheddar biscuits with a hearty egg and sausage bake. It’s a perfect make-ahead dish for a weekend brunch or a comforting breakfast any day of the week.

A close-up view of a square piece of a baked breakfast casserole on a white plate, showing two main layers: the bottom layer is light and fluffy with chunks of cooked sausage mixed throughout, and the top layer is golden brown and slightly puffy with melted cheddar cheese and small green chive pieces sprinkled on top. The texture looks soft and slightly crumbly, with the cheese melted heavily on the surface adding a glossy finish. The background is a white marbled texture. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

Cheddar Bay Biscuit mix or pre-made biscuits
6 large eggs
1 cup whole milk (or 2% or non-dairy milk)
2 cups sharp cheddar cheese, shredded
1 cup bell peppers, diced
1 cup onions, diced
1 cup spinach, chopped
1 pound crumbled sausage (or ground beef or cooked bacon)
1 teaspoon garlic powder
1 teaspoon onion powder
1/2 teaspoon cayenne pepper
Salt and pepper to taste

Instructions

Step 1: Preheat the oven to 350°F (175°C).
Step 2: Prepare the biscuits according to the package instructions or your recipe, then let them cool slightly and cut into bite-sized pieces.
Step 3: In a skillet over medium heat, cook the crumbled sausage until fully browned. Drain excess fat and set aside.
Step 4: In a large bowl, whisk together the eggs and milk until combined. Season with salt, pepper, garlic powder, onion powder, and cayenne pepper.
Step 5: In a greased 9×13 inch baking dish, layer the biscuit pieces evenly on the bottom. Add the cooked sausage, diced bell peppers, onions, and chopped spinach over the biscuits.
Step 6: Pour the egg mixture evenly over the layered ingredients in the baking dish.
Step 7: Sprinkle shredded sharp cheddar cheese generously over the top of the casserole.
Step 8: Bake for 30-35 minutes, or until the eggs are set and the top is golden brown.
Step 9: Allow the casserole to cool for a few minutes before slicing into squares. Serve warm and enjoy!

Tips & Variations

For a vegetarian version, substitute the sausage with sautéed mushrooms and extra vegetables of your choice.
Use leftover cooked bacon or ham instead of sausage for a different flavor.
To add extra freshness, sprinkle chopped green onions or fresh herbs like parsley on top before serving.
Make the casserole the night before and refrigerate; bake it in the morning for a quick warm breakfast.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave until warmed through or in a preheated oven at 350°F (175°C) for about 10-15 minutes. This casserole does not freeze well because of the biscuit texture.

How to Serve

A close-up of a thick square slice of a fluffy biscuit casserole served on a white plate. The casserole has multiple layers, starting with a soft, pale biscuit base filled with bits of light brown sausage. Above that is a rich layer of melted golden-yellow cheese mixed into the biscuit layers. The top layer is golden brown with a slightly crispy texture, sprinkled with small pieces of green herbs for color. The edges show some browned, baked cheese and sausage bits, making the dish look warm and hearty. The plate sits on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use frozen biscuits instead of biscuit mix?

Yes, pre-made frozen biscuits work well. Just bake them according to package instructions before layering them in the casserole.

Can I prepare this casserole ahead of time?

Absolutely! Assemble the casserole the night before, cover it tightly, and refrigerate. Bake it fresh the next morning for the best texture and flavor.