I was diagnosed with ESRD almost 9 years ago and am still there. One thing that has been very helpful is to not focus so much on foods that I can stuff myself with, but rather to spend some energy on learning how to control myself better. For example, I enjoy eating dark chocolate, but instead of eating a whole bar of it, or totally depriving myself of that simple pleasure, I have learned to break that bar into the smallest pieces that are scored on it and then allow myself to eat one half of one of those pieces everyday after dinner. I take that little piece and hold it in my mouth and let it dissolve slowly in my mouth while I savor and enjoy it. Then stop. That's it for chocolate for the day. The past couple of months I've also been experimenting with intermittent fasting to try to just eat less of everything as a way of not having to limit my food choices so much. I eat mostly vegetables but if my wife is eating a hamburger I might share it with her by taking a bite. Same as with the chocolate try to eat it slowly and really enjoy it if hamburger is something you're going to really miss. Be careful about root vegetables and other sources of potassium. Good luck! It ain't easy, but you can do it.