This is a particularly hard habit to break. You should stop eating approximately 2-3 hours before going to sleep. It's almost as hard as quitting smoking. Seriously. I can offer tips, but this is more-so a will-power thing.
Tip #1: Make sure your dinner is satisfying. Sounds easy, but if you are in a "diet" frame of mind, you might be holding back on a fulfilling meal. Don't worry about seconds, you should be eating good food anyway and your metabolism ought to be up because of all the working out you are doing. Don't starve yourself. Eat slowly and with purpose until you are no longer hungry. Chew your food well and satiate yourself.
#2: Avoid caffeine starting 5-6 hours prior to your bedtime. The more caffeine you consume, the longer you will stay awake and hunger is bound to strike again. Drink an herbal tea or water, instead. Sipping on water will also help curb your hunger because you are occupying your mouth.
#3: Brush your teeth. Sometimes your body just wants a flavor, not necessarily food. Brush your teeth or use some mouthwash. Your mouth gets the minty fresh benefit of a taste and it will help with your general oral hygiene.
#4: If television is your biggest trigger, turn the fucker off. Have a conversation on the phone, read a book, do your homework, pay the bills, clean the house. Remove the trigger and allow for a new nighttime ritual that does not include food.
#5: Go back to writing your food intake down in a journal. This will remind you of your goals and help you see your caloric intake for the day already. It helps put things into perspective.
I'm not saying this will be easy. Quite the opposite, actually. It must be done, however. If you can make it through the first few nights, much like smoking, it will be quite worth it in the long run.
