Heat oven to 400°F for dark or nonstick pan (425°F for all other pans). Spray 15x10-inch pan with sides with cooking spray.
Unroll dough in pan; starting at center, press dough into 15x10-inch rectangle. Bake about 8 minutes or until light brown.
Spread pesto to within 1/2 inch of edges of crust. Top with 1 1/2 cups of the cheese, the chicken and tomatoes; sprinkle with remaining 1/2 cup cheese.
Bake 5 minutes longer or until edges of crust are golden brown and cheese is melted. Sprinkle with basil. To serve, cut into 6 rows by 3 rows.