Make Potatoe Knishes!
This was a great idea given to me by my sister-in-law. She said they were easy and her family (with young kids) loved them.
Cut puff pastry into squares at the size desired. Place a spoonful of the mashed potato mixture into center of square. Fold over and seal all edges of knish. Bake for 15 minutes or until lightly brown. Enjoy!