Make-Ahead Breakfast Egg Casserole

Highlighted under: Simple Everyday Cooking

Start your day off right with this delicious and convenient Make-Ahead Breakfast Egg Casserole. Perfect for busy mornings or brunch gatherings!

Emily

Created by

Emily

Last updated on 2025-12-22T23:18:28.893Z

This Make-Ahead Breakfast Egg Casserole is a game-changer for those hectic mornings. Packed with protein and veggies, it keeps you full and energized. Plus, you can prepare it the night before!

Why You'll Love This Recipe

  • Versatile and customizable with your favorite ingredients
  • Perfect for meal prep and feeding a crowd
  • Deliciously hearty and satisfying

A Perfect Start to Your Day

Mornings can often be hectic, with everyone scrambling to get out the door. This Make-Ahead Breakfast Egg Casserole is a game-changer, allowing you to enjoy a nutritious meal without the morning rush. Prep it the night before, and all you need to do in the morning is pop it in the oven. The delightful aroma of eggs, cheese, and fresh vegetables will fill your kitchen, making your family eager to start their day with a hearty breakfast.

Whether you're preparing for a busy workweek or hosting a brunch gathering, this casserole is ideal. It's packed with protein and essential nutrients, ensuring you're fueled for whatever the day brings. Plus, with its customizable ingredients, everyone can have their preferred flavors, making it a versatile choice for any palate.

Customizable Ingredients

One of the best features of this breakfast casserole is its versatility. You can easily swap out ingredients to suit your taste or dietary preferences. If you’re a vegetarian, consider adding sautéed mushrooms, spinach, or zucchini for a delicious twist. For those who enjoy a bit of spice, diced jalapeños or pepper jack cheese can add a delightful kick to your meal.

Similarly, you can use different types of cheese, such as mozzarella or feta, to add unique flavors to your casserole. The options are endless, so feel free to get creative and make this dish your own. This adaptability ensures that it can be enjoyed by everyone around the table!

Meal Prep Made Easy

Meal prepping can simplify your week and help you maintain a balanced diet. With this Make-Ahead Breakfast Egg Casserole, you can prepare a large batch that lasts through several busy mornings. Store individual slices in the refrigerator for up to five days, or freeze portions for longer storage. Simply reheat in the microwave or oven when you're ready to enjoy a quick, satisfying breakfast.

Not only does this casserole save you time in the mornings, but it also reduces food waste. By utilizing leftover ingredients from your fridge, you can create a delicious meal that utilizes what you already have on hand.

Ingredients

Casserole Ingredients

  • 12 large eggs
  • 2 cups milk
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup shredded cheddar cheese
  • 1 cup diced bell peppers
  • 1 cup diced cooked ham
  • 1/2 cup chopped green onions

Feel free to swap ingredients based on your preferences!

Instructions

Preheat the Oven

Preheat your oven to 350°F (175°C).

Prepare the Egg Mixture

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

Add Fillings

Stir in the cheese, bell peppers, ham, and green onions into the egg mixture.

Bake the Casserole

Pour the mixture into a greased 9x13 inch baking dish and bake for 45 minutes, or until the eggs are set and the top is golden.

Cool and Serve

Allow it to cool for a few minutes before slicing and serving.

Enjoy warm or store leftovers in the refrigerator for an easy breakfast option!

Storing Leftovers

If you happen to have any leftovers after enjoying your breakfast casserole, storing them properly is key to maintaining their flavor and texture. Allow the casserole to cool completely before slicing it into portions. Then, place the slices in an airtight container. They can be refrigerated for up to five days, making them perfect for quick breakfasts throughout the week.

For longer storage, consider freezing the individual portions. Wrap them tightly in plastic wrap and place them in a freezer-safe container or bag. This way, you can have a ready-to-eat breakfast option that can be reheated whenever you need it!

Pairing Suggestions

This Make-Ahead Breakfast Egg Casserole is delicious on its own, but pairing it with complementary sides can elevate your breakfast experience. Consider serving it with a fresh fruit salad for a refreshing contrast or some crispy bacon or sausage for added protein and flavor. A side of avocado slices or a dollop of sour cream can also enhance the dish.

For a complete brunch spread, serve it alongside a chilled beverage like fresh-squeezed orange juice or a warm cup of coffee. These pairings not only enhance the flavors but also create a delightful dining experience that everyone will love.

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Questions About Recipes

→ Can I make this casserole the night before?

Yes, you can prepare the egg mixture the night before and bake it in the morning.

→ What can I substitute for the ham?

You can use cooked bacon, sausage, or even spinach for a vegetarian option.

→ How do I store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 4 days.

→ Can this be frozen?

Yes, you can freeze the casserole before baking. Just thaw it in the fridge overnight before baking.

Make-Ahead Breakfast Egg Casserole

Start your day off right with this delicious and convenient Make-Ahead Breakfast Egg Casserole. Perfect for busy mornings or brunch gatherings!

Prep Time15 minutes
Cooking Duration45 minutes
Overall Time60 minutes

Created by: Emily

Recipe Type: Simple Everyday Cooking

Skill Level: Easy

Final Quantity: 8 servings

What You'll Need

Casserole Ingredients

  1. 12 large eggs
  2. 2 cups milk
  3. 1 teaspoon salt
  4. 1/2 teaspoon black pepper
  5. 1 cup shredded cheddar cheese
  6. 1 cup diced bell peppers
  7. 1 cup diced cooked ham
  8. 1/2 cup chopped green onions

How-To Steps

Step 01

Preheat your oven to 350°F (175°C).

Step 02

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

Step 03

Stir in the cheese, bell peppers, ham, and green onions into the egg mixture.

Step 04

Pour the mixture into a greased 9x13 inch baking dish and bake for 45 minutes, or until the eggs are set and the top is golden.

Step 05

Allow it to cool for a few minutes before slicing and serving.

Nutritional Breakdown (Per Serving)

  • Calories: 280 kcal
  • Total Fat: 18g
  • Saturated Fat: 8g
  • Cholesterol: 320mg
  • Sodium: 600mg
  • Total Carbohydrates: 12g
  • Dietary Fiber: 1g
  • Sugars: 2g
  • Protein: 20g