Breakfast Casserole with Biscuits
Whether you're preparing for a family gathering, a holiday morning, or just looking to enjoy a satisfying meal to start the day, this casserole is the perfect choice.
Equipment
- 9 x 13-inch Baking Dish
- Large Skillet
- Whisk
- Plastic Wrap
- Nonstick Cooking Spray
Ingredients
- 1 (16.3 ounce) can refrigerated biscuit dough (8 biscuits total, about 8 cups cubed)
- 1 lb. ground pork breakfast sausage (Italian sausage is also a great alternative)
- 2 teaspoons chopped fresh sage (or ½ teaspoon ground sage)
- 1 cup (4 ounces) grated sharp cheddar cheese
- 1 cup (4 ounces) grated Gruyere, gouda, fontina, or Swiss cheese
- 8 large eggs
- 3 cups whole milk or half-and-half
- ½ teaspoon dry ground mustard
- ½ teaspoon kosher salt
- ¼ teaspoon ¼ teaspoon ground black pepper
- Pinch of cayenne (optional, for a little spice)
Instructions
Baking the Biscuits
- Start by baking the refrigerated biscuits according to the package instructions. Once baked, set them aside to cool completely. This step is key, as the biscuits will be cut into cubes and incorporated into the casserole. Pro tip: You can even bake the biscuits a day or two in advance, and stale biscuits work wonderfully for this recipe!
Cooking the Sausage
- While the biscuits cool, heat a large skillet over medium-high heat and add the ground sausage. Use a wooden spoon to break the sausage apart as it cooks. Stir occasionally until the sausage is browned and cooked through—this should take about 5 to 10 minutes. Once the sausage is cooked, stir in the chopped fresh sage (or ground sage if you're using that). Remove the skillet from the heat and set it aside.
Assembling the Casserole
- Now it’s time to assemble the casserole! Grease your 9 x 13-inch baking dish with nonstick cooking spray to prevent sticking. Begin by layering the cubed biscuits in the bottom of the prepared dish, spreading them out evenly.
- Then, sprinkle the cooked sausage over the biscuits, followed by both types of grated cheese (cheddar and Gruyere). Toss everything gently so the biscuits, sausage, and cheese are evenly distributed across the dish.
Preparing the Egg Mixture
- In a large bowl, whisk together the eggs, milk (or half-and-half), ground mustard, kosher salt, black pepper, and a pinch of cayenne if you like a little spice. This creamy egg mixture will soak into the biscuits and sausage, creating the delicious custard base of the casserole.
- Pour the egg mixture evenly over the biscuit and sausage layers in the baking dish. Make sure to cover everything thoroughly so the biscuits have plenty of time to soak up the custard overnight.