Preheat the oven to 375 degrees. Roll out your pizza dough. Either with a pairing knife or a large heart shaped cookie cutter, cut out mini hearts. Place them on a greased baking sheet. Prebake the crust for eight minutes. Flip the crust over and place the sauce on the crust. Top the pizza with the cheese. Than have fun and top the pizzas with your favorite toppings. Bake the pizzas for another eight minutes.