Heat the oven to 350 degrees F. Mix the meat, onion soup mix, milk and egg together. Shape the mixture firmly into a loaf shape, in a 13 X 9 X 2-inch baking pan. Mix the remaining ingredients together and spoon onto the loaf. Bake, uncovered, for about an hour. When done, remove the loaf to a plate and let stand for 10 minutes before slicing. Serve on a heated platter.