PREHEAT oven to 400º F. Grease an 8-inch-square baking dish.
HEAT oil in large, nonstick skillet over medium heat. Add onion; cook, stirring occasionally, for 3 to 4 minutes or until golden. Add sauce; cook, stirring occasionally, for 1 minute. Stir in pasta. Pour into prepared baking dish. Sprinkle cheese and bread crumbs over pasta mixture; cover.
BAKE for 20 minutes. Uncover; bake for additional 5 minutes or until golden brown.