Cooking Instructions:

Preheat your oven to 375°F (190°C). In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined. Set aside.

In an oven-safe skillet, heat the olive oil over medium heat. Add the diced onion and sauté until translucent, about 3-4 minutes. Add the minced garlic and cook for an additional minute until fragrant.

Stir in the chopped spinach and cook until wilted, about 2-3 minutes. If you're using any additional vegetables, add them at this stage and cook until tender.

Pour the egg mixture over the sautéed vegetables in the skillet. Sprinkle the crumbled feta cheese evenly on top.

Cook on the stovetop for about 5 minutes, or until the edges begin to set. Then transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the frittata is puffed and golden.

Once cooked, remove from the oven and let it cool for a few minutes. Slice into wedges and serve warm or at room temperature.

Extra Tips:

For a fluffier frittata, make sure to beat the eggs thoroughly to incorporate air. You can also add fresh herbs like dill or parsley for an extra burst of flavor.

If you prefer a crustless quiche, this frittata serves that purpose perfectly, allowing you to enjoy a lighter version of a traditional dish. To enhance presentation, consider garnishing with a sprinkle of fresh herbs or a drizzle of olive oil before serving. Enjoy your delightful brunch!