Place a pizza stone, unglazed ceramic tiles, or a heavy cookie sheet on the oven rack. Heat oven to 400° F.
If starting with pizza dough, pat or pull each piece into a 12-inch circle.
Top each circle with sauce, then scatter the chicken, basil, and mozzarella over each. Drizzle with oil.
Sprinkle the pizza stone with the cornmeal.
Using the back of a cookie sheet, transfer the pizza to oven. (You may have to bake the pizzas one at a time, depending on the oven size.)
Bake 20 minutes or until the cheese is melted and the crust is browned.