It there anything more comforting than "Mac n' Cheese". This was my favorite dish as a kid.
Marcaroni, boil about 8 minutes
Put a tablespoon or two of margarine or butter into a baking bowl, add macaroni
Salt and pepper
A pinch of dry mustard
Mix in a cup or two of shredded cheese (cheddar is always good but I've been using Swiss Grubec lately), spinkle a layer of cheese on top
Pour in 1 to 1 1/2 cup of milk