Preheat grill to medium-high heat.
Generously spray grill grates with non-stick spray.
Place naan 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 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.