"This recipe for Polish kotlety ziemniaczane na sos pieczarkowy, literally "potato cutlets with meadow mushroom (button mushrooms as opposed to the highly prized borowiki mushroom) gravy," is from Walt Gach of Ohio. I found his version on the Eastern European Food forums and adapted it slightly. This recipe is a good candidate for leftover mashed potatoes as long as no milk was added when mashing, or you can start from square one. These potato cakes or cutlets make a great meatless main course, side dish or appetizer. Here's a larger picture of Polish potato cutlets. Makes about 12 Polish Potato Cutlets with Mushroom Sauce..."