Originally taken from another recicpe given to me by a friend. I thought it was a bit on the dry side and not as cheesey as I would like so I tweaked it and tweaked it some more and I think I finially came up with a winner but see if you agree and feel free to comment or add some of your own suggestions.
cook macaroni in salted boiling water until eldante. Drain well and stir in the beaten egg. Place half of the pasta in a casserole dish. Add half of the cubed velveeta cheese on top spreading around so it is evenly distributed. Place remaining noodles over this and add rest of velveeta. salt and pepper to taste. Add just enough milk to barely cover the macaroni. Add your favorite shredded cheese. Bake at 350 about half an hour or until slightly browned on top. Cool about 5 minutes before serving.