Melt butter in a pan with one medium sliced onion. Saute in 325 degree oven. Peel and cut up 2 potatos and add to onions.
Then, prepare meat mixture: To 1 lb. ground beef, add 1 egg, 2 slices of bread that have been toasted, then wet and squeezed dry, and dry onion soup mixture, and ketsup.
Arrange the onions and potatos around the sides of the pan and add the molded meat mixture. Garnish the top of the meat with a little more ketsup. Bake 1 hour at 325 degrees. Recipe can be doubled and baked longer.