Nothing says it better than good old fashioned macaroni and cheese. Use the recipe off the Mueller's Box. It is foolproof and three boxes will feed an army, their only getting a couple tablespoons; particularly if others are bringing food too.
The key to making this Mac & Cheese creamy and delicious, is to remove the roux from the heat and then add the cheese and ad 2-3 American cheese slices...it does the trick. You can reheat in an over or "carefully" in a microwave.
It says use sharp cheese, but I use 1 cup sharp and 1 cup Monterrey Jack.
Hope this helps.
remember...follow the recipe.