Make-Ahead Breakfast Egg Casserole

Name: Make-Ahead Breakfast Egg Casserole
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Yield: 8 servings
Ingredients: 10 large eggs; 1 cup milk; 2 cups shredded cheese (cheddar or your choice); 1 cup diced bell peppers; 1 cup diced onions; 1 cup cooked and crumbled sausage or bacon (optional); Salt and pepper to taste; 1 teaspoon garlic powder; 1 teaspoon onion powder; Chopped fresh herbs (like parsley or chives)

Highlighted under: Hearty Home Cooking

Enjoy a hearty and delicious breakfast with this easy Make-Ahead Breakfast Egg Casserole. Perfect for busy mornings!

Created by

Emma

Last updated on 2025-12-23T00:42:28.960Z

This Make-Ahead Breakfast Egg Casserole is a fantastic solution for busy mornings. Prepare it the night before and simply pop it in the oven in the morning. With a mix of eggs, cheese, and your favorite vegetables, it's a nutritious start to your day!

        Why You'll Love This Recipe
        Quick and easy to prepare, perfect for busy mornings
Versatile - customize with your favorite vegetables and meats
Deliciously cheesy and satisfying

      

Perfect for Meal Prep

This Make-Ahead Breakfast Egg Casserole is a game-changer for anyone looking to streamline their morning routine. You can prepare it the night before, saving you precious time in the morning rush. Simply mix all the ingredients, pour them into a baking dish, and let it sit overnight in the refrigerator. In the morning, pop it into the oven, and in no time, you’ll have a warm, hearty breakfast ready to serve.

Meal prepping with this casserole is not only convenient but also helps reduce food waste. You can easily use up any leftover vegetables or meats in your fridge, making this dish highly adaptable. It's an excellent way to ensure you and your family start the day with a nutritious meal without the hassle.

Customizable for Everyone

One of the best features of this egg casserole is its versatility. You can customize it to suit different tastes and dietary preferences. Whether you prefer spinach, mushrooms, or zucchini, feel free to mix in your favorite vegetables. If you're looking for a vegetarian option, simply skip the meat and add extra veggies instead.

Moreover, you can experiment with different types of cheese as well. While cheddar cheese is a classic choice, you could also try feta for a tangy twist or mozzarella for a gooey texture. This flexibility ensures that everyone at your table will find something they love, making breakfast a delightful experience.

Storing and Reheating

If you find yourself with leftovers, storing this casserole is a breeze. Allow it to cool completely, then cover it tightly with plastic wrap or transfer it to an airtight container. It can be stored in the refrigerator for up to five days, making it an excellent option for meal prep or quick breakfasts throughout the week.

When you're ready to enjoy it again, simply reheat individual portions in the microwave or pop the entire dish back into the oven at 350°F (175°C) until warmed through. This casserole retains its flavors and texture beautifully, ensuring that each bite is just as delicious as the first.

Ingredients

For the Casserole

10 large eggs
1 cup milk
2 cups shredded cheese (cheddar or your choice)
1 cup diced bell peppers
1 cup diced onions
1 cup cooked and crumbled sausage or bacon (optional)
Salt and pepper to taste
1 teaspoon garlic powder
1 teaspoon onion powder

For Garnish

Chopped fresh herbs (like parsley or chives)

Mix and match ingredients to suit your taste!

Instructions

Prepare the Egg Mixture

In a large bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper until well combined.

Add Vegetables and Meat

Stir in the diced bell peppers, onions, and cooked sausage or bacon if using.

Add Cheese

Fold in 1.5 cups of shredded cheese, reserving the remaining 0.5 cup for topping.

Bake the Casserole

Pour the mixture into a greased 9x13 inch baking dish. Sprinkle the remaining cheese on top. Bake at 350°F (175°C) for 30-40 minutes or until the eggs are set and the top is golden brown.

Serve

Let cool for a few minutes, then slice and serve warm, garnished with fresh herbs.

This casserole can be prepared the night before for an even quicker breakfast!

Nutrition Highlights

This Make-Ahead Breakfast Egg Casserole is not only delicious but also packed with nutrients. Eggs are a great source of high-quality protein, essential for muscle repair and overall health. Combined with the vitamins from bell peppers and onions, this dish offers a balanced breakfast that helps energize your day.

By adding ingredients like spinach or kale, you can increase the nutritional value even further. These leafy greens provide a wealth of vitamins and minerals, making this casserole a wholesome choice for anyone looking to maintain a healthy diet.

Serving Suggestions

Pair this casserole with a side of fresh fruit for a complete breakfast. Slices of watermelon, strawberries, or a citrus salad can add a refreshing note to your meal. If you enjoy a little spice, consider serving it with salsa or hot sauce for an extra kick.

For those who prefer a heartier meal, serve it alongside whole-grain toast or English muffins. This combination not only enhances the meal but also provides additional fiber to help keep you full throughout the morning.

Questions About Recipes

→ Can I make this casserole ahead of time?

Yes! You can prepare it the night before and bake it in the morning.

→ What type of cheese works best?

Cheddar is popular, but feel free to experiment with mozzarella, pepper jack, or your favorite cheese.

→ Can I freeze leftovers?

Yes, you can freeze the casserole. Just make sure to store it in an airtight container.

→ How do I reheat leftovers?

Reheat in the oven at 350°F (175°C) until warmed through, or use the microwave in short intervals.