R.J.
Potato Balls!!!
You can put anything in potato balls, literally, anything (edible). Mash potatoes w/ "whatever"... roll into balls... and voila. Finger food. That also freezes :)
Also works for solids (I try and use the word literal by it's definition ;). Whole peas, chopped up veggies, chopped up meats, cheeses... you name it.