Preheat oven to 450ºF. Line a baking sheet with foil or parchment paper and lightly spray with oil. In a bowl, combine the bread crumbs and Parmesan. In a second bowl, combine the olive oil and lemon juice. Set aside.
Cut each chicken breast in half, horizontally to create 6 pieces. Cover with a piece of wax paper and lightly pound to 1/4″ thickness. Season lightly with salt and pepper.
Lay each piece out and top with 1-2 tablespoons mozzarella cheese and 2 slices pepperoni. Roll each piece up, starting with the smaller edge and then dip into the olive oil mixture and then into the bread crumbs mixture. Place stuffed chicken breast onto the baking sheet, with the seam facing down. Lightly spray the tops with oil. Bake chicken roll ups for 20 minutes.
Remove stuffed chicken breast and then add about 1 Tablespoon of marinara and mozzarella cheese. Bake chicken roll ups for an additonal 4 to 5 minutes, or until the cheese is melted and the chicken is no longer pink.
In the cookbook, it mentions adding mushroom, purple onions and green peppers. Feel free to add your favorite toppings to this pizza stuffed chicken breast recipe!