My grandmother would make these all the time for me when I was a kid. It brings back fond memories :)
The Parmesan cheese is a great addition. I sprinkle ground mustard on the hot dog before adding the mashed potatoes. It adds a little kick.
This sounded just weird enough to be yummy so I gave it a shot. Mashed potatoes, hot dogs, cheese, you can't go wrong! My daughter loved it and so did I! Little tip....I should've sprayed my cookie sheet with non stick spray or something...though it is kinda old.
I just made these for my grand kids!!! the loved them. Mom used to make these all the time growing up...guess cause we were always in between pay days:) I jazz up the mashed potatoes by adding some Lawery's and Garlic Powder.