You need to be looking at a combination of things.
Without know what exactly you are eating right now and how much of a diet you are on (as in how many calories a day you are restricting yourself to) it is difficult to advise.
However.
Protein - address this and you should not be as hungry. You need to look at pulses, grains, beans and nuts.
Here is a great resource which gives you loads of information on protein.
http://www.vrg.org/nutrition/protein.php
Next you need to consider fibre.
Fibre fills you up for longer and is very good for the bowel as I am sure you have heard about by now.
Bananas are always cited as a good source of fibre. Sadly I can't have them. What I can have though is maize which can be made into popcorn...
It also counts as 1 of your 5 a day and is great for munching on when you are peckish in the evening. I'm not talking about the shop bought or cinema stuff though. In the UK we can get one by Butterkist which is Sweet
& Salted Microwave popcorn. It is only 80 calories per serving. Sadly the microwave packs come in 3 serving sizes, but that gives you around 120 calories if you split a bag with someone (my husband never says no) and is much better than munching on things like pringles or a handy pack/sharing pack of something like kettle crisps which have a much higher calorie content. Better still is the DIY popcorn, but you need to control yourself with the amount of oil you put in. A single tablespoon of oil has 120 calories and it is all too easy to add more than a single tablespoon full.
There are plenty of other sources of fibre as well, beans and pulses obviously contain fibre and help to keep you full for longer. But as I said earlier, without some idea on what you are eating now and what your goals are calorie wise, it is hard to advice.
Also you have to train your body to realise that being hungry is not a bad thing. That is one of the most difficult things after sorting out your diet.