This is very good! I had a lot of leftover mashed potatoes from Thanksgiving, so I was looking for something! I added some dry Ranch dressing mix and no chives (didn't have any!) I did add extra cheese to the mixture. Baked in an oval baker. Just like the filling of twice baked!!! YUM! Thanks for posting.
Very nice! Has all the flavor of a twice-baked potato without the jacket. Instead of using frozen mashed potatoes, I opted to use an equal weight of home made mashed potatoes instead. I had accidentally mixed the cheese into the potatoes when mixing, but did sprinkle some extra cheese on top before baking. My daughter loved this. Thanks for posting!