There was a water maker on board.
We hired the chef from the company and provisioned our own boat to our liking. We specified the separated meat but also requested to cook the packed meat to match whatever the meat of the day was. For instance, if the group was having chicken then it was requested to thaw the transported chicken to accompany it. We asked for no separate meal prep or cooking style. Pork chops,ribs,bacon,chicken,summer sausage,regular sausage,butter and milk were packed and asked to be used in tandem with the group meals. No extra effort on the chefs part.