Preheat oven to 425° F. and spray a quarter sheet pan with cooking spray.

In a large bowl whisk together the eggs, egg whites, 1/2 teaspoon Italian seasoning, salt and pepper.

Heat the olive oil in a large skillet over medium-high heat. When the oil is hot add in the onion, mushrooms, bell pepper, remaining Italian seasoning, garlic powder, salt and pepper. Sauté until the vegetable are soft, about 3-5 minutes.

Dump the vegetable out onto the sheet pan and spread them into an even single layer. Pour the eggs over the vegetable and put the sheet pan in the oven. Bake for 8-9 minutes or until mostly set.

Remove the frittata from the oven and switch the oven heat to broil. Spread the marinara or pizza sauce over the top of the frittata. Top with slices of pepperoni and fresh mozzarella cheese. Broil for another 2 minutes or until the cheese is melted and the frittata is set. Top with fresh chopped basil and serve.