Pacific Yachting magazine probably 10 years ago had an elderly chef that had a 26 foot sail boat. He died. He had recipes made with canned and fresh foods that were boat friendly. I have no idea if he ever wrote a cook book but if he did I would get it and have some very good meals https://www.pacificyachting.com/ There are a few recipes on the web page. If you find his cook book please let us all know as it might help some.