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Make-Ahead Sausage and Egg Bake
When you're hosting a morning gathering, this make-ahead sausage and egg casserole is a lifesaver. You'll build a hearty foundation of browned pork sausage, fresh mushrooms, and bright tomatoes, all bound together by a fluffy baking mix and melted mozzarella. Because it rests in the fridge overnight, all that's left to do in the morning is pop it in the oven. It's a comforting, savory breakfast that lets you actually enjoy your own brunch party.
Ingredients
- 1 lb bulk pork sausage
- 1½ cups sliced fresh mushrooms (4 oz)
- 8 medium green onions, sliced (½ cup)
- 2 medium tomatoes, chopped (1½ cups)
- 2 cups shredded mozzarella cheese (8 oz)
- 1¼ cups Original Bisquick mix
- 1½ teaspoons salt
- 1½ teaspoons chopped fresh or ½ teaspoon dried oregano leaves
- ½ teaspoon pepper
- 1 cup milk
- 12 eggs
Instructions
- 1Grease a 13x9-inch baking dish with cooking spray. In a skillet over medium-high heat, cook the pork sausage for 5 to 7 minutes until browned and cooked through, breaking it into crumbles. Drain the excess fat. Spread the cooked sausage, sliced mushrooms, green onions, chopped tomatoes, and shredded mozzarella cheese evenly in the prepared baking dish.
- 2In a large mixing bowl, whisk the baking mix, salt, oregano, black pepper, milk, and eggs together until completely smooth. Pour this liquid mixture evenly over the layered ingredients in the baking dish.
- 3Cover the baking dish tightly and refrigerate for at least 2 hours, or up to 24 hours. This resting time allows the baking mix to hydrate fully for a fluffier texture.
- 4When you're ready to bake, preheat the oven to 350°F. Uncover the baking dish and bake for 30 to 35 minutes, or until the top is golden brown and the center is fully set.
Notes
- Make ahead: You can assemble this casserole the night before and bake it fresh in the morning.
- Storage: Keep leftover portions in an airtight container in the fridge for up to 3 days.
- Reheat: Warm individual slices in the microwave for 60 to 90 seconds until heated through.
- Swap: Feel free to substitute the pork sausage with turkey sausage or a plant-based alternative.