I agree with the post above , sometimes head hunger and thirst hunger are mistaken, make sure you drink plenty of water during the day, If you eating and 10/15 mins later and you ate a reasonable size meal then its more likely to be thirst hunger, if you feel this is not the case then try eating foods that keep you fuller for longer potatoes, eggs, oatmeal porridge,beans, etc...
HTH - All the best - MeJulie xx