Weight Gain and Snacking

So I've been smoke free for a month and some change and I didn't realize how hungry I was going to be, like all the time. I've done put on 10lbs in the last 30 some days. I've recently switched to healthier snacks, veggies and fruit. But it seems every couple of hours I start fiending for food.

How in the hell have you all managed this issue, if you had it all? I drink plenty of water, exercise regularly, etc.