This was really, really good! I changed just a few tiny things: I added about 1 1/2 cups extra water, because the roux seemed to really get too thick; added one stalk of celery, diced finely and added to the potatoes and carrots; I left out the rosemary and hot pepper sauce due to finicky small children; and I used an 8-oz. bag of shredded cheddar cheese, which was more than cheesy enough for us. Results -- still basically the same recipe, and cheers and near-applause from the family as they ate it. I will definitely keep this recipe and make it again. Thanks, Mika G.!