Pepperoni pizza puffs

Pizza Italian cuisine

¾ cup flour ¾ teaspoon baking powder 1 tablespoon Italian seasoning pinch of salt (my addition, optional) pinch of red pepper flakes (my addition, optional) ¾ cup whole milk 1 egg, lightly beaten 1 cup shredded mozzarella cheese ¼ cup grated Parmesan cheese 1 cup cubed pepperoni ½ cup store-bought pizza sauce