A hearty, comforting breakfast that’s perfect for busy mornings, this Overnight Breakfast Casserole allows you to prepare it the night before and simply bake it the next morning for a delicious, no-fuss meal.
Origin Overnight Breakfast Casserole
The concept of an overnight casserole has been around for years, often enjoyed during holidays or gatherings. This breakfast version takes advantage of bread, eggs, cheese, and breakfast meats, all soaked overnight in a savory custard, resulting in a rich, satisfying dish.
What I Love About This Recipe
This casserole combines all the flavors of a traditional breakfast—eggs, sausage, cheese, and bread—into one easy-to-make dish. It’s customizable and can be made ahead of time, making it ideal for feeding a crowd or preparing a meal for a busy morning.
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Overnight Breakfast Casserole
4
servings30
minutes40
minutes300
kcalIngredients
8 slices of bread (any type, cubed)
1 lb breakfast sausage (crumbled)
1 medium onion, diced
2 cups shredded cheese (cheddar or a mix)
8 large eggs
2 cups milk (any kind)
1 teaspoon salt
½ teaspoon black pepper
1 teaspoon garlic powder
1 teaspoon mustard powder (optional)
1 tablespoon butter (for greasing the baking dish)
Fresh herbs for garnish (optional, such as parsley or chives)
Directions
- Grease a 9×13-inch baking dish with butter.
- Layer the cubed bread in the dish.
- In a skillet, cook the breakfast sausage over medium heat until browned, breaking it into small pieces as it cooks. Add the diced onion and cook until softened.
- Sprinkle the cooked sausage and onion mixture evenly over the bread cubes, then top with shredded cheese.
- In a large bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and mustard powder (if using).
- Pour the egg mixture evenly over the bread, sausage, and cheese. Press down gently with a spoon to ensure the bread absorbs the liquid.
- Cover the casserole with plastic wrap or aluminum foil and refrigerate overnight.
- The next morning, preheat the oven to 350°F (175°C).
- Remove the plastic wrap or foil from the casserole and bake for 45-50 minutes, or until the casserole is golden brown and set in the center.
- If the top is browning too quickly, cover the casserole loosely with foil and continue baking.
- Let the casserole cool for a few minutes before cutting it into squares. Garnish with fresh herbs if desired. Serve hot, with a side of fruit or a dollop of sour cream if you like.
Notes
- You can customize the casserole by adding vegetables like spinach, bell peppers, or mushrooms.
- If you prefer a vegetarian version, you can substitute the sausage with sautéed vegetables or plant-based breakfast meat.
- To make the casserole even richer, add some cream instead of milk.
- This casserole can be stored in the fridge for up to 3 days and reheated easily.