Pierogi are available here as fresh product in the fridge section (ready to boil or pan frying) or deep-frozen in bags which can last months in your freezer (boiling only, tho you could dethaw and fry but that's too much hassle). Making pierogi comercially freeze dried would make no sense.
We recently had some frozen pierogi from Costco that were outrageously good. They were called Kasia's Pierogi. Best I've had in the US other than the ones made by the polish bakery in SF for Christmas.
