Season chicken, if desired, with salt and pepper. Heat olive oil in 12-inch nonstick skillet over medium-high heat and brown chicken, about 5 minutes.
Stir in Sauce and simmer covered 5 minutes or until chicken is thoroughly cooked. Top chicken with cheese, then let stand 1 minute or until cheese is melted. Garnish with basil. Serve, if desired, with hot cooked spaghetti and additional Sauce, heated.