Unroll the dough portions crosswise onto a large baking sheet coated with cooking spray and sprinkled with cornmeal. Slightly overlap the edges of the dough, pinching the edges together to seal. Pat the dough into a 15 x 12-inch rectangle. Bake at 450° for 2 minutes. Top with the remaining ingredients. Bake an additional 12 minutes or until cheese melts. Garnish with pepper, if desired.