Get ready for a nutritious and satisfying breakfast that the whole family will love with our Easy Greek Breakfast Casserole! Made with simple ingredients and packed with protein, this dish is not only delicious but also perfect for meal prep and busy mornings.

This easy casserole is chock-full of wholesome ingredients like eggs, veggies, cheese, olives, and — surprise! — garlicky bread. Everything comes together to create a casserole that’s both hearty and full of flavor. Whether you enjoy it hot out of the oven or as leftovers throughout the week, this breakfast option is a winner.

Plus, we made sure to make it meatless so it’s vegetarian-friendly. You can customize it with your favorite Greek-inspired ingredients or add a sprinkle of herbs and spices for an extra burst of flavor.

overhead image of a baked breakfast casserole with bread

What Is a Breakfast Casserole? 

Casseroles are meals baked in large, deep casserole dishes. Made with a wide variety of ingredients and flavors, they generally contain some kind of protein along with vegetables and starch like potatoes, pasta, or rice.

That said, a breakfast casserole meets all of these requirements but is made with common breakfast ingredients like eggs, veggies, and cheese! You can kind of think of them like baked omelets! 

Ingredients You’ll Need

The items needed for this breakfast casserole with bread are super budget-friendly, making this dish great for meal prep and perfect for feeding a crowd! Here’s what you’ll need: 

  • Eggs – These form the base of the dish, providing structure along with high-quality protein and healthy fats. 
  • Milk – This helps combine the ingredients and creates fluffy eggs. For the richest flavor, we recommend whole milk, but any kind you have on hand is totally fine. 
  • Seasonings – Salt, pepper, paprika, and garlic powder help enhance the flavor for a delicious, savory taste. 
  • Bread – We love to include thick Texas toast for a bold garlicky flavor! However, feel free to use any thick-cut bread you have on hand. 
  • Meatless Grounds – To keep this breakfast casserole with bread vegetarian-friendly, we used meatless grounds. However, if preferred, ground sausage, beef, turkey, or ham would taste great, too. 
  • Veggies – Red and green bell peppers along with green onions are included for extra texture, fiber, and nutrients to fill you up. 
  • Olives – Pitted Kalamata olives add a salty, savory taste we adore. 
  • Cheese – We include a combination of feta cheese and Colby Jack or Mozzarella for a gooey, delicious texture that makes this breakfast casserole to die for. 
Overhead image of a casserole dish full of breakfast casserole with bread

How to Make the Best Breakfast Casserole with Bread

This breakfast casserole is super quick and unbelievably easy to whip up so you can be in and out of the kitchen in no time! Here’s what to do: 

  1. Whisk the Eggs. To begin, whisk the eggs, milk, and seasonings together in a large mixing bowl until smooth. 
  2. Arrange the Bread. Next, slice each piece of bread into four pieces, and arrange them in an even layer in the bottom of a 13×9 baking dish
  3. Layer the Casserole. Then, pour the egg mixture on top of the bread. Then, add the meatless grounds followed by the rest of the ingredients. 
  4. Refrigerate. Cover the casserole with aluminum foil, and place it in the refrigerator to soak overnight. 
  5. Bake. To finish, bake the casserole covered for 20 minutes. Then, remove the foil, and continue to bake for an additional 20 minutes or until the top is golden brown. Serve warm, and enjoy!
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Serving Suggestions

Loaded with flavor, this recipe is delicious all on its own. However, we love to load it up with extra toppings like avocado slices, fresh herbs such as cilantro or parsley, salsa, sour cream, or even hummus!

Then, if you’re feeling fancy, whip up a few extra dishes for a big breakfast or brunch spread. Some of our top picks to pair are: 

How to Store and Reheat

One of the best things about this breakfast casserole with bread is that it’s super easy to make ahead of time and keeps really well! Just follow the storage instructions below to ensure it stays fresh. 

Refrigerator: Once cooled, leftovers can be covered or transferred to an airtight container and stored in the fridge for up to 5 days. 

Freezer: Freeze the baked casserole in a freezer-safe container for up to 2 months. 

To Reheat: Let your casserole thaw in the fridge overnight. Then, warm it in the microwave in intervals of 30 seconds. Or, heat it back up in the oven at 350° Fahrenheit for about 20 minutes or until your desired temperature is reached. 

baked breakfast casserole with bread

Frequently Asked Questions

Why is my breakfast casserole with bread runny? 

If your casserole turns out too runny, it’s most likely because the ratio of the egg mixture to bread was off. You want to make sure there’s enough bread to cover the bottom of your casserole dish without being completely drowned in liquid. 

Can I use a different kind of bread? 

Absolutely! Any bread you like best will work for this recipe. However, we recommend opting for a thick, fluffy kind such as French or Brioche bread in order to absorb the egg mixture. 

Should I cover my casserole in the oven? 

We recommend keeping your breakfast casserole covered for the first 20 minutes of baking. This allows the ingredients to cook and set without burning the top of the bread. 

More Savory Breakfast Recipes You’ll Love

If you’re craving more delectable breakfast options, look no further! We’ve got a lineup of mouthwatering recipes that are sure to be oh-so-satisfying first thing in the morning.

baked breakfast casserole with bread

The Best Breakfast Casserole with Bread

5 from 1 vote
Author: Food Dolls
Servings: 8 servings
Prep: 5 minutes
Cook: 40 minutes
Total: 45 minutes
The Best Breakfast Casserole with Bread, this easy recipe comes together with simple ingredients for a nutritious, high-protein breakfast you can feel good about. Easy to toss together, and perfect for meal prep it’s one meal the whole family will love! Meatless Option. 


  • 8 large eggs
  • 2 cups whole milk
  • 2 teaspoons sea salt
  • 1 1/2 teaspoons ground black pepper
  • 1 teaspoon paprika
  • 1/2 teaspoon garlic powder
  • 1 loaf texas toast or thick cut bread
  • 1 cup meatless grounds
  • 1 cup red pepper chopped
  • 1 cup green pepper chopped
  • 1/2 cup pitted kalamata olives sliced
  • 1/2 cup green onions sliced
  • 1/2 cup feta cheese
  • 2 cups Colby Jack cheese or Mozzarella cheese


  • In a large mixing bowl whisk the eggs, milk, and seasonings until smooth.
    8 large eggs, 2 cups whole milk, 2 teaspoons sea salt, 1 1/2 teaspoons ground black pepper, 1 teaspoon paprika, 1/2 teaspoon garlic powder
  • Cut each slice of bread into four pieces. Arrange them in a sinlge layer in the bottom of a buttered 13×9 baking dish. Pour the egg mixture over the bread.
    1 loaf texas toast or thick cut bread
  • Top with meatless grounds, veggies, olives, and cheese! Cover and refrigerate overnight.
    1 cup meatless grounds, 1 cup red pepper, 1 cup green pepper, 1/2 cup pitted kalamata olives, 1/2 cup green onions, 1/2 cup feta cheese, 2 cups Colby Jack cheese or Mozzarella cheese
  • Preheat the oven to 350 degrees Fahrenheit.
  • Bake covered with aluminum foil for 20 minutes. Remove the foil, and continue to bake for an additional 20 minutes or until the top is golden brown.
  • Store in the fridge for up to 5 days.

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Serving: 1serving | Calories: 311kcal | Carbohydrates: 11g | Protein: 20g | Fat: 21g | Saturated Fat: 11g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 0.02g | Cholesterol: 211mg | Sodium: 1177mg | Potassium: 321mg | Fiber: 2g | Sugar: 5g | Vitamin A: 1473IU | Vitamin C: 41mg | Calcium: 386mg | Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Meet Alia & Radwa

Welcome to Food Dolls! We’re so glad you found us. We are Alia and Radwa, sisters who want to share simple and easy recipes with you. We hope you find recipes here that you enjoy making as much as we do! Learn more about us!

5 from 1 vote (1 rating without comment)

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  1. Have you ever tried making this with ground beef. What exactly is meatless grounds? Is that a vegetarian substitute? Thank you,