Overnight Sausage & Egg Casserole
The Best Overnight Sausage and Egg Casserole is a make-ahead breakfast dish perfect for busy mornings or gatherings. With layers of bread, sausage, cheese, and vegetables soaked overnight in an egg mixture, it offers a flavorful, hearty, and stress-free meal that’s ready to bake and serve.
Equipment
- Large mixing bowl for egg mixture
- Whisk to blend the egg mixture
- Skillet for cooking the sausage
- Knife and cutting board for chopping vegetables
- 9x13-inch baking dish for assembling the casserole
- Aluminum foil to cover the dish for overnight refrigeration
Ingredients
- 1 lb 450 g sausage, cooked and crumbled
- 6 slices of day-old bread crusts removed and cubed
- 2 cups shredded cheese cheddar, Colby jack, or a mix
- 8 large eggs
- 2 cups milk
- ½ tsp salt
- ¼ tsp black pepper
- ½ cup chopped onions
- ½ cup diced red bell pepper
- ¼ cup diced green chiles optional
Instructions
Assemble the Casserole:
- Lightly grease a 9x13-inch baking dish.
- Layer the cubed bread at the bottom of the dish.
- Sprinkle the shredded cheese evenly over the bread.
- Distribute the cooked sausage, onions, bell peppers, and green chiles (if using) over the cheese layer.
Prepare the Egg Mixture:
- In a large mixing bowl, whisk together the eggs, milk, salt, and pepper until smooth.
- Pour the egg mixture evenly over the layers in the baking dish, ensuring it soaks the bread thoroughly.
Refrigerate Overnight:
- Cover the dish with aluminum foil and refrigerate for at least 8 hours or overnight. This allows the bread to absorb the egg mixture fully.
Bake the Casserole:
- Preheat your oven to 350°F (175°C).
- Remove the casserole from the fridge and let it sit at room temperature for 30 minutes.
- Bake covered with aluminum foil for 20 minutes, then uncover and bake for an additional 15-20 minutes, or until the top is golden and the center is set.
- Let the casserole rest for 10 minutes before serving.
Notes
- Customizations:
- Swap sausage for bacon, ham, or plant-based alternatives.
- Add vegetables like spinach or mushrooms for extra nutrients.
- Cheese Options: Mix and match cheeses such as mozzarella, Swiss, or feta for different flavors.
- Storage: Refrigerate leftovers for up to 3 days in an airtight container. Reheat individual portions in the oven or microwave.
Nutrition
Calories: 310kcal
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