Cook pasta according to package directions, omitting salt and fat.
Heat oil in a large nonstick skillet over medium-high heat. Add chicken to pan; sauté 3 minutes on each side. Add onion and next 5 ingredients (through tomatoes) to pan; stir well. Cover, reduce heat, and simmer 25 minutes or until chicken is done. Remove from heat; sprinkle with cheese. Serve with pasta.