Make Ahead Breakfast Casserole
This Make Ahead Breakfast Casserole is a hearty, savory dish perfect for busy mornings. Prep ahead, bake, and enjoy a delicious, protein-packed start to your day!
Servings: 6 servings
Ingredients
- 1 pound pork breakfast sausage
- 0.5 red onion chopped
- 1 fennel bulb diced
- 1 teaspoon kosher salt divided
- 5 ounces fresh baby spinach
- 12 eggs
- 0.25 cup milk
- 0.25 teaspoon ground black pepper
Instructions
- Preheat your oven to 350°F (175°C) to ensure even cooking.
- In a large skillet over medium heat, add the pork breakfast sausage. Cook until browned, breaking it up with a spatula as it cooks, about 5-7 minutes.
- Add the chopped red onion and diced fennel bulb to the skillet with the browned sausage. Season with a pinch of the kosher salt and sauté for about 5 minutes until vegetables are softened.
- Stir in the fresh baby spinach and cook just until wilted, about 2 minutes. Remove the skillet from heat and allow mixture to cool slightly.
- In a large mixing bowl, whisk together the eggs, milk, remaining kosher salt, and ground black pepper until well combined and frothy.
- Gently fold the sausage and vegetable mixture into the egg mixture, ensuring even distribution.
- Grease a 9x13 inch baking dish with olive oil or cooking spray. Pour the casserole mixture into the prepared dish, spreading it out evenly.
- Bake in the preheated oven for 30-35 minutes, or until the eggs are set and the top is lightly golden. A knife inserted in the center should come out clean.
- Remove the casserole from the oven and let it cool for a few minutes. Slice into squares and serve warm.
Equipment
- Large Skillet
- Mixing Bowl
- Baking Dish
- Whisk
- Spatula
Notes
- For extra flavor, add shredded cheese to the egg mixture before baking.
- Try adding diced jalapeños or red pepper flakes for a spicy kick.
- Let the casserole rest for 5-10 minutes before slicing to help it hold its shape.
- Freeze leftovers for up to three months; thaw overnight before reheating.
- Use seasonal vegetables to customize flavors throughout the year.