Starting the day with a wholesome, protein-rich breakfast can set the tone for better energy, focus, and overall health. This oven-baked spinach and feta breakfast casserole is a mouthwatering way to enjoy the benefits of fresh vegetables, farm-fresh eggs, and nutrient-dense cheese in one satisfying dish. Perfect for busy mornings, weekend brunches, or even meal prep, it delivers a flavorful blend of Mediterranean inspiration and classic comfort food appeal. The baked egg base is light yet filling, while the spinach adds a vibrant burst of color and vitamins, and the feta provides a tangy, creamy contrast. Best of all, it’s easy to prepare ahead of time, making it ideal for anyone who wants a quick yet nourishing breakfast without sacrificing taste. Serve it with fresh fruit, a crisp green salad, or warm crusty bread for a well-balanced start to your day.
Ingredients
- 1 tbsp olive oil
- 1 small onion, finely diced
- 2 garlic cloves, minced
- 5 oz fresh spinach, roughly chopped
- 8 large eggs
- 1 cup milk
- ½ tsp salt
- ¼ tsp black pepper
- ¼ tsp ground nutmeg
- 1 cup crumbled feta cheese
- ½ cup shredded mozzarella cheese
Makes 6 servings
Instructions
- Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with olive oil.
- Heat olive oil in a skillet over medium heat. Add onion and garlic, cooking until the onion turns soft and fragrant.
- Stir in spinach and cook until wilted, then remove from heat.
- In a large bowl, whisk together eggs, milk, salt, pepper, and nutmeg until smooth.
- Mix in the spinach mixture, feta, and half the mozzarella.
- Pour into the baking dish and spread evenly.
- Top with remaining mozzarella and bake for 35–40 minutes, until set and golden.
- Cool slightly before slicing and serving.
Nutrition & Dietary Info
This breakfast casserole offers a high-protein, nutrient-rich start to the day, making it excellent for supporting muscle health and steady energy levels. Spinach adds antioxidants, fiber, and vitamins, while feta provides calcium and healthy fats. Naturally gluten-free, it’s suitable for low-carb and keto-friendly diets, and can be easily adapted for vegetarians or those avoiding dairy by using plant-based cheese alternatives.