Mix beef, onions, crumbs, mint, salt and pepper;
add water, small amount at a time, just until mixture holds together.
Form into bite-sized balls; arrange balls in single layer in shallow
oven dish. Pour tomatoes over meatballs; sprinkle with cinnamon. Dot
with Margarine. Bake in 400-degree oven for 1 hour. Serve with
toothpicks.