Ok, I've made this a few times...and my hubby loves it. Recently I ate some leftovers from a friend's dinner and the macaroni was 'packed' with cheese. Usually I make 1 lb of macaroni, shred 1 bar of Cracker Barrel cheddar cheese, then use 3 more cups of different kinds of cheese. How much more cheese can I put in without completely ruining it? I use the layer method- macaroni, egg/milk mixture, cheese, then repeat. Am I doing something wrong? Second question- I wanted to chop chicken up and put it in the macaroni. Is this a good idea? At what step should I add it in? Any other comments/macaroni recipes will be helpful.....thanks so much.