I wonder if avoiding the food that you merely "want" and eating something you'll "like" will always be sufficient for ridding yourself of the original desire. Suppose I finish that slice of cheesecake, but my cheeto craving remains unfulfilled? Perhaps it would be helpful to give into our desires in very small amounts, like eating 4 cheetos instead of the bag, so as to not carry around a bunch of unrealized desires all the time.