I personally find eating smaller meals more frequently helps to balance your blood sugar levels throughout the day. I eat about 5 meals spaced out about every 3 hours or so. The other thing that will help is to work on eliminating sugar in your diet, you'd be amazed at how satisfying more natural sugars like those found in fruit will taste after you get rid of processed sugar from your eating. Adding more fibrous veggies will also help to create a feeling of fullness.
What plan are you following if any?