Greek Breakfast Casserole for an 8×8 Pan—A Simple and Tasty Recipe

A hearty and flavorful breakfast sets the tone for the rest of the day, and this Greek Breakfast Casserole does just that. Packed with Mediterranean flavors, this dish combines eggs, feta cheese, tomatoes, spinach, and olives into a satisfying and protein-rich meal.

This 8×8-inch casserole is perfect for small households, weekend brunches, or meal prep for busy mornings. It’s easy to make, full of nutrients and bold flavors, and can be customized with your favorite Greek-inspired ingredients. Plus, it’s naturally low in carbs and gluten-free, making it a fantastic option for a healthy and balanced breakfast.

Ingredients

For the Base:

• 8 large eggs
• ½ cup milk (whole, 2%, or unsweetened plant-based)
• ½ teaspoon salt
• ¼ teaspoon black pepper
• ½ teaspoon dried oregano
• ½ teaspoon garlic powder

For the Greek-Inspired Filling:

• 1 tablespoon olive oil
• ½ small onion, finely chopped
• 1 cup fresh spinach, chopped
• ½ cup cherry tomatoes, halved
• ⅓ cup Kalamata olives, sliced
• ½ cup feta cheese, crumbled
• ½ cup cooked diced potatoes (optional, for a heartier version)

For Topping:

• ¼ cup shredded mozzarella or more feta cheese
• 1 tablespoon fresh parsley or dill, chopped (for garnish)

Step-by-Step Instructions

Step 1: Preheat the Oven and Prepare the Baking Dish

1. Preheat your oven to 375°F (190°C).
2. Lightly grease an 8×8-inch baking dish with olive oil or cooking spray.

Step 2: Sauté the Vegetables

1. In a medium skillet, heat 1 tablespoon of olive oil over medium heat.
2. Add the chopped onion and sauté for 2-3 minutes until softened.
3. Stir in the chopped spinach and cook for another 1-2 minutes, just until wilted. Remove from heat and set aside.

Step 3: Prepare the Egg Mixture

1. In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, oregano, and garlic powder until well combined.

Step 4: Assemble the Casserole

1. Spread the sautéed onions and spinach evenly in the greased baking dish.
2. Scatter the halved cherry tomatoes, sliced Kalamata olives, and crumbled feta cheese over the vegetables.
3. If using diced cooked potatoes, add them now for a more filling casserole.
4. Pour the egg mixture over the vegetables and cheese, ensuring everything is evenly distributed.
5. Sprinkle shredded mozzarella or extra feta cheese on top for added creaminess.

Step 5: Bake the Casserole

1. Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the eggs are set and the top is slightly golden.
2. To check for doneness, insert a knife or toothpick into the center—if it comes out clean, the casserole is ready.

Step 6: Garnish and Serve

1. Remove the casserole from the oven and let it cool for 5 minutes before slicing.
2. Garnish with fresh parsley or dill for extra flavor.
3. Serve warm and enjoy!

Tips for the Best Greek Breakfast Casserole

✅ Use Fresh Ingredients: Fresh spinach, tomatoes, and feta provide the best flavors, but frozen spinach can be used—just be sure to thaw and drain it well.

✅ Make It Dairy-Free: Substitute plant-based milk and use dairy-free feta to make this casserole completely dairy-free.

✅ Add Protein: If you’d like extra protein, add cooked ground turkey, chicken sausage, or even chickpeas to the filling.

✅ Customize Your Veggies: You can swap or add vegetables such as zucchini, roasted red peppers, or artichokes for more variety.

✅ Meal Prep Friendly: This casserole stores well in the refrigerator for up to 4 days, making it perfect for meal prepping.

✅ Freezing Instructions: After baking, let the casserole cool completely, then cut it into portions and store in airtight containers. Freeze for up to 2 months. To reheat, bake at 350°F (175°C) for 15 minutes or microwave for 1-2 minutes.

✅ Serving Temperature: This dish can be enjoyed warm or at room temperature, making it great for brunch gatherings.

What to Serve with Greek Breakfast Casserole

This casserole is satisfying on its own, but pairing it with a few extras makes it even better!

Greek Salad – A light, refreshing side of cucumbers, tomatoes, red onions, and feta pairs perfectly with this dish.

Pita Bread or Toasted Whole-Grain Bread – A slice of crusty bread or pita is great for scooping up every bite.

Avocado Slices – Creamy avocado adds richness and pairs beautifully with the Mediterranean flavors.

Herbal Tea or Greek Coffee – A hot cup of chamomile tea or Greek coffee complements the flavors well.

Why You’ll Love This Recipe

Perfect for Small Households: This 8×8-inch pan recipe serves about 4 people, making it ideal for a small family breakfast or meal prep.

Low-Carb and Gluten-Free: Naturally gluten-free and lower in carbs, this dish is a great option for those following a healthy Mediterranean diet.

Nutrient-Packed: With protein from eggs, fiber from veggies, and healthy fats from feta and olives, this casserole is both satisfying and nourishing.

Easy to Make and Customizable: This dish requires minimal prep and is easy to adjust based on your favorite ingredients.

Freezer-Friendly and Great for Meal Prep: Bake it ahead, freeze portions, and reheat as needed for a quick breakfast.

This Greek Breakfast Casserole is a delicious way to start your day with bold Mediterranean flavors and plenty of nutrients. Whether you’re making it for a weekend brunch, meal prepping for the week, or enjoying a cozy breakfast at home, this dish is sure to impress.

Give it a try, and let us know how it turns out! Enjoy your homemade Greek Breakfast Casserole!