Overnight Breakfast Casserole Recipe
Overnight breakfast casserole is a hearty, make-ahead dish that’s perfect for busy mornings, holidays, or feeding a crowd. Made with layers of bread, eggs, cheese, and your favorite mix-ins, it’s assembled the night before and baked fresh in the morning—warm, satisfying, and stress-free.

Ingredients List
6 large eggs
2 cups milk
1 teaspoon salt
½ teaspoon black pepper
6 slices bread, cubed
1 cup shredded cheddar cheese
1 cup cooked sausage or chopped ham
½ cup chopped bell peppers (optional)
½ cup chopped onions (optional)
Butter or oil for greasing
Step-by-Step Instructions
Step 1: Grease a 9×13-inch baking dish. Layer the bread cubes evenly at the bottom.
Step 2: Sprinkle cooked sausage (or ham), bell peppers, onions, and shredded cheese over the bread.
Step 3: In a bowl, whisk together eggs, milk, salt, and pepper until smooth.
Step 4: Pour the egg mixture evenly over the layered ingredients in the dish.
Step 5: Cover the dish with foil or plastic wrap and refrigerate overnight (at least 8 hours).
Step 6: In the morning, preheat the oven to 350°F (175°C). Remove the casserole from the fridge while the oven heats.
Step 7: Bake uncovered for 45–50 minutes, or until the center is set and the top is golden. Let cool slightly before serving.
Cooking Time
Prep Time: 15 minutes
Chill Time: 8 hours (overnight)
Cook Time: 50 minutes
Total Time: 9 hours 5 minutes
Servings
Makes 8 servings
Nutritional Information (approx. per serving)
Calories: 280
Carbs: 12g
Protein: 16g
Fat: 18g
Storage Instructions
Refrigerate leftovers for up to 4 days in an airtight container.
Reheat in the microwave or oven until warmed through.
Can be frozen before or after baking for up to 2 months.
Pairings/Suggestions
Serve with fresh fruit, yogurt, or a green salad.
Add salsa or hot sauce on the side for extra flavor.
Perfect for holiday breakfasts or weekend brunch gatherings.
Seasonal Relevance
Especially popular during fall and winter holidays like Thanksgiving, Christmas, or New Year’s brunch.
Conclusion
This overnight breakfast casserole makes mornings easy and delicious. With just a little prep the night before, you’ll wake up to a hot, comforting meal everyone will love—perfect for holidays, guests, or any time you want breakfast without the morning rush.
Overnight Breakfast Casserole Recipe
Course: Uncategorized8
servings15
minutes8
hours280
kcalThis Overnight Breakfast Casserole is a convenient and delicious way to start your day with a hearty, savory meal. Packed with eggs, cheese, bread, and your choice of meats or veggies, it’s perfect for meal prep or feeding a crowd. Simply assemble the night before, refrigerate, and bake in the morning for a warm, satisfying breakfast.
Ingredients
6 large eggs
2 cups milk
1 teaspoon salt
½ teaspoon black pepper
6 slices bread, cubed
1 cup shredded cheddar cheese
1 cup cooked sausage or chopped ham
½ cup chopped bell peppers (optional)
½ cup chopped onions (optional)
Butter or oil for greasing
Directions
- Grease a 9×13-inch baking dish. Layer the bread cubes evenly at the bottom.
- Sprinkle cooked sausage (or ham), bell peppers, onions, and shredded cheese over the bread.
- In a bowl, whisk together eggs, milk, salt, and pepper until smooth.
- Pour the egg mixture evenly over the layered ingredients in the dish.
- Cover the dish with foil or plastic wrap and refrigerate overnight (at least 8 hours).
- In the morning, preheat the oven to 350°F (175°C). Remove the casserole from the fridge while the oven heats.
- Bake uncovered for 45–50 minutes, or until the center is set and the top is golden. Let cool slightly before serving.
Recipe Video
Notes
- Store leftovers covered in the fridge for up to 4 days. Reheat in the oven or microwave until warmed through. You can customize with sausage, bacon, ham, or vegetables like bell peppers and spinach. Using day-old bread or rolls helps the casserole soak up the custard better. This recipe can be made gluten-free by swapping the bread for a gluten-free variety. For best results, assemble at least 6 hours ahead or overnight before baking.
FAQs
Q1: Can I make it without meat?
Absolutely! Just skip the meat or replace it with sautéed veggies or plant-based sausage.
Q2: Can I use different bread?
Yes, French bread, sourdough, or even croissants work great for a richer flavor.
Q3: How do I know it’s fully cooked?
The center should be firm and not jiggly, and a knife inserted in the middle should come out clean.