01 -
Preheat your oven to 375°F (190°C).
02 -
In a large bowl, whisk together the eggs, milk, parsley, salt, and pepper until well combined. Set aside.
03 -
Heat the olive oil in an oven-safe skillet (preferably cast iron) over medium heat. Add the zucchini slices and cook for 2–3 minutes, stirring occasionally, until slightly softened. Add the cherry tomatoes and cook for another 2 minutes, just until they begin to release their juices. Season lightly with salt and pepper.
04 -
Spread the zucchini and tomatoes evenly across the skillet. Pour the egg mixture over the vegetables, ensuring it covers them evenly. Sprinkle the shredded mozzarella cheese on top.
05 -
Cook the frittata on the stovetop over medium heat for about 2–3 minutes, until the edges start to set. Transfer the skillet to the preheated oven and bake for 12–15 minutes, or until the eggs are fully set and the top is lightly golden.
06 -
Remove the skillet from the oven and let the frittata cool for 5 minutes. Garnish with extra parsley, slice into wedges, and serve warm.