Does anyone have a recipe for homemade cat food?

I did a quick search and couldn't find one that was completely grain/flour free, but I can keep looking. I would recommend talking to your vet about a referral to a vet who specializes in nutrition. Most vets do not--which is why they sell that science diet junk--but if you can get in with a vet that does, they might be able to guide you to how to feed for the health problems your kitties have. I do have some recipes, but given the issues two of your cats have I think you should get some professional guidance.