This was a great hit and super easy to make! I did make some changes, though, that I would recommend others do.
This recipe needs salt & pepper, and I added a few dashes of crushed red pepper to mine as well. To feed four adults, I'd recommend doubling the recipe, to make sure there is enough for everyone to get at least two bowls.
I did not mash the potatoes, since we like them in cubes, so I just added the 1/2 cup of milk directly into the pot. I also added a quarter of a stick of cream cheese at the end and let it melt in, which made it really creamy and smooth.