Bro, maybe im missing something hear. But it looks like your going to just one meal and its going to be a 12 inch pizza?
Thats not going to work well at all for raising leptin. That meal has almost as much fat as carbs in it.
Plus, one meal usually isnt sufficient for raising leptin. If your going to do a short refeed, id suggest at least 8-10 hours. With much less fat and much more carbs.