For me what has really worked throughout my abstinence is "Move a muscle, change a thought."  Whenever I want to eat, I first get out of the kitchen and away from the food. Then, as I do with my young children, I distract myself.  I do anything to forget that I am "hungry." I put my blinders on and I say "I'm not going to eat no matter what...not an option," so what else can I do for the next hour or so until it's lunchtime? Even making a cup of tea can be distracting and physically filling.