Meanwhile, in small bowl, mix tomatoes, garlic powder and onion powder; stir to completely combine. Top both crusts with tomato sauce, cheese, Italian seasoning and pepperoni. Return cookie sheets to oven on opposite racks from first bake. Bake 8 to 10 minutes or until cheese is melted and crust is golden brown. Using pizza cutter, cut thin strip (1/4 inch) off straight side of each crust; cut each half into 3 slices. Serve warm.