Ingredients
Method
Preparation
- Preheat the oven to 400°F (200°C).
- In a large oven-safe skillet, heat the olive oil over medium heat.
- Add the chopped onion and sauté until translucent, about 5 minutes.
- Toss in the chopped spinach and diced tomatoes, cooking for an additional 3-4 minutes until the spinach is wilted.
- In a mixing bowl, whisk together the eggs, salt, and pepper until well combined.
- Pour the egg mixture over the sautéed vegetables in the skillet and sprinkle the grated Parmesan cheese on top.
- Cook on the stovetop for about 5 minutes, gently lifting the edges with a spatula to let uncooked egg flow underneath.
- Transfer the skillet to the preheated oven and bake for 15-20 minutes or until the frittata is puffed and golden on top.
- Remove from the oven, let it cool for a few minutes, slice, and serve warm.
Notes
Store leftovers in an airtight container for up to 3-4 days in the refrigerator. For longer storage, freeze wrapped slices for up to 2 months. Reheat in a preheated oven or microwave.
