I do dream about food. Some people dream about encouters with the opposite sex; I dream about food. In my most recent food dream, I was eating those cookies with the m & m's in them...dream cookies are so delicious.

At least it's a way to enjoy eating without the calories.
If a dream leads to a craving, I'll wait at least one day. Either the craving goes away or I decide that I want the item badly enough that I'll get it (in moderation of course).