I think this one is one of his favorites. And I made this for the missionaries last time we had them over for dinner and they loved it. (I tripled the batch, and it was ALL gone by the time they were done with it.) This recipe is from Kraftfoods.com.
It is easy, and really good, if you like mac and cheese...
PREHEAT oven to 350°F. Mix milk and eggs in large bowl. Add butter, red pepper, prepared cheese product and Cheddar cheese. Stir in macaroni; mix lightly.
POUR into 1-1/2-quart casserole.
BAKE 20 minutes or until heated through.