Mix ground beef, stove top, and egg and shape into a loaf or 9 meatballs. Place in square baking dish or meatloaf pan. Place a pat of butter on top of each meatball than pour one can of beef gravy over all the meat balls... For a loaf press an indent in the top of the loaf and put a 1/2 stick of putter in the indent than cover with the beef gravy.... Cover in foil and bake at 350 for one hour. Remove foil for last 15 minutes. Add cooked bacon pieces or cheese when mixing for different taste. Meat balls can also be cooked in a cupcake pan.