Cheesy Zucchini and Onion Frittata

This Cheesy Zucchini and Onion Frittata is a perfect easy weeknight dinner and a great way to use up those zucchinis you have lying around in your fridge. The onions and zucchinis are sautéed until tender, then mixed with eggs, milk, and cheese, and baked in the oven until golden and fluffy.

1. Preheat oven to 375°F.
2. In a large bowl, whisk eggs and milk until well combined. Stir in shredded cheese, salt, and pepper. Set aside.
3. Heat olive oil in a large oven-safe skillet over medium heat. Add sliced onions and zucchinis, and sauté until tender, about 5-7 minutes.
4. Pour the egg and cheese mixture over the sautéed vegetables and continue to cook over medium heat for 3-4 minutes or until the bottom is set.
5. Transfer the skillet to the preheated oven and bake for 10-12 minutes, or until the top is golden and the center is set.
6. Remove from the oven and let cool for 5 minutes. Sprinkle fresh parsley on top (optional) and serve warm. Enjoy your Cheesy Zucchini and Onion Frittata!