Preheat oven to 450°. In a greased 15x10x1-in. baking pan, toss vegetables with oil, salt and pepper. Roast 18-22 minutes or until tender, stirring once., Meanwhile, in a large saucepan, cook gnocchi according to package directions. Drain and return to pan., Stir in roasted vegetables, Alfredo sauce and pesto. If desired, sprinkle with basil.