Preheat grill to medium-high heat.
Divide pizza dough into four equal balls and roll out to about 1/4 inch thick. Generously spray grill grates with non-stick spray. Place pizza dough directly on the grill grates.
After about a minute, when the bottom of the pizza is solid and is beginning to get grill lines, flip the dough over with a spatula. Top with tomato sauce, garlic powder, Italian seasoning, mozzarella cheese and your favorite pizza toppings.
Close the lid of the grill to melt the cheese. After about three minutes, the cheese should be melted and the pizza cooked through. Remove from the grill grates with a spatula.
Let sit for a few minutes to let the cheese set before serving.