Preheat oven to 350°F. Lightly brown ground beef. Add chopped onion. Cook ... into a 2-quart casserole dish. Mix bread crumbs and ... minutes or until hot.
Cook macaroni according to package ... Pour into greased casserole. Mix egg, milk and ... over macaroni. Cook ground beef and onion together. Drain grease ... degrees for 20 minutes.