If using classic crust: Heat oven to 425°F. Spray or grease cookie sheet. Unroll dough on cookie sheet. Starting at center, press dough into 13x9-inch rectangle. If using thin crust: Heat oven to 400°F. Spray or grease 15x10-inch or larger dark or nonstick cookie sheet. Unroll dough on cookie sheet; starting at center, press dough into 15x10-inch rectangle.
Spread pesto evenly over dough. Top with tomatoes, olives, onion and cheese.
Bake classic crust 10 to 12 minutes, bake thin crust 8 to 10 minutes, or until crust is deep golden brown and cheese is melted. Cut into 4 servings.