Amish Potato Filling

"Instead of the usual stuffing at Thanksgiving diner, opt for this Amish Potato Filling instead. This easy side dish recipe is a unique cross between mashed potatoes and stuffing. You won't be able to get enough of its fluffy texture and flavor that comes from just a touch of onions and celery. What's great about this recipe is that it feeds a crowd and then some. In addition to making one batch, you can also make a smaller batch to freeze for later, all with the same recipe! This would be a great way to use up Thanksgiving leftovers, too...."