Preheat oven to 350 degrees F. and lightly spray a 9×13 inch baking dish with cooking spray.
Cook pasta according to package directions, drain and place in a large skillet over warm heat.
Stir in pasta sauce, chicken, tomatoes, basil leaves, Parmesan cheese and sweet peppers. Transfer to prepared baking dish and top evenly with Mozzarella balls. Bake for 20-30 minutes until cheese is melted.