The absolute first thing you should do is get those treats out of the house until you've got your cravings under control!
Are you both keeping journals? Are you listing not only what you eat but your thoughts and emotions that day as well as your exercise? This tool is really a big help. It might not stop you from eating a "no, no" (although knowing you have to record it often stops you from eating it) but it might help you see why the cravings hit (i.e., not enought fats in your diet, stressful day, etc.).
Don't forget the water or other decafinated (sp?) drinks! Those not only help fill you up they hydrate your skin and hair and help flush toxins and waste out of your system. VERY important.
MOST IMPORTANT: EVERYONE has set-backs. DO NOT beat yourselves up over this, please! I had my first set-back on my very FIRST day OP. You have proven to yourselves that you can do this. Don't let this little (and, yes, it's little) set-back get you down. Take control and move on.
We are all in this together. Log on for support any time.