I decided to try Bobby Flay's scalloped sweet potatoes, but I want to do them a day before. The recipe is simple: layer the sliced potatoes with a mixture of cream and chipotle chile puree. I think it would be best to cook the casserole, cover and refrigerate, then reheat before dinner. Is there a better way? I must cut the potatoes in advance, but then what? I can't deal with all the side dishes at dinner time.Thanks for advice.