Preheat oven to 450 degree F. In a small bowl stir together the mozzarella and Parmesan cheeses; set aside.
Cut each naan bread in half at an angle. For each, flip one half over, then place the cut sides next to each other to form a heart shape. Spread with basil pesto. Arrange hearts on a baking sheet. Sprinkle each with cheese mixture. Bake for 10 minutes or until golden.