If you're craving sweets, 1/4 of a fresh pineapple, 1/2 a fresh papaya, or 1/2 a fresh mango help.
If you're hungry, the more veggies you eat, the less hungry you will be. Just be careful of the starchy veggies... corn, winter squash, etc.
Having 2 to 3 servings fruit every day seems to help. Actual fruit, not juice. Again, just be cautious about the starchy fruits... bananas, etc.