Peel and boil the potatoes until they are soft. Mash the potatoes and add salt, pepper, margarine, chicken stock, cooked ground meat if using, and/or milk or milk substitute as desired until you like the taste.
Use piping bag with a wide tip to put onto a baking sheet in lines or dots or whatever shape you fancy. If you don't have a piping bag let the potatoes cool and then put in a sturdy ziplock bag, snip off a corner and use that. Bake in a moderate (375 °F) oven until the tops are golden brown.
After they cool completely you can freeze them.