Mushroom and Spinach Frittata

Ingredients

• Parmesan cheese - 1/4 cup, grated
• Cheddar cheese - 1 cup, shredded
• Salt and pepper - To taste
• Milk - 1/4 cup
• Eggs - 8
• Garlic - 2 cloves, minced
• Onion - 1 small, diced
• Spinach - 2 cups, chopped
• Mushrooms - 8 ounces, sliced
• Olive oil - 1 tablespoon

Instructions

1. Preheat the oven to 375°F.
2. Heat the olive oil in a large oven-safe skillet over medium heat.
3. Add the mushrooms, spinach, onion, and garlic. Cook until the mushrooms are tender and the spinach is wilted, about 5 minutes.
4. In a bowl, whisk together the eggs, milk, salt, and pepper.
5. Pour the egg mixture over the vegetables in the skillet. Stir gently to distribute the ingredients evenly.
6. Sprinkle the cheddar cheese and Parmesan cheese over the top.
7. Transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the frittata is set and the cheese is melted and golden.
8. Remove from the oven and let it cool for a few minutes before slicing and serving.