Spray large skillet with cooking spray. Add garlic; cook over medium heat 1 to 2 minutes or until golden brown, stirring frequently. Add tomatoes, onion, 2 tablespoons basil, salt and pepper; stir. Cover. Cook 15 minutes or until onion is crisp-tender, stirring occasionally.
Meanwhile, cook pasta according to package directions.
Drain pasta; place in large serving bowl. Top with tomato mixture; sprinkle with remaining 2 tablespoons basil.