Given up smoking and the weight is returning

I have used MFP for a while now and lost a total 39lb which I was totally happy with until recently. I gave up smoking 6 wks ago and have since put on 7lb :sad: . I don't seem to have the same will power I used to have and am finding it really hard to not snack in the evenings. I try to keep healthy snacks in the house but seem to go on a chocolate and savoury bender at the weekends. If anyone has any tips or advice I would be really grateful. Many thanks :smile: