You may be over thinking this. If you were honest in your interviews then the cook knows what he is getting. He must figure that you are easily trainable. They will only give you what they think you can handle. Above all, be honest about your skills and ask questions.
You also don't know...
...sea for only a few days? The Coast Guard is taking shipments of spam, pop tarts and other food to the Carnival Cruise Ship stranded off Mexico because of a fire aboard. A cruise ship buffet can feed a Mexican village for weeks. They should have lots of various canned and fresh goods in...
If you have to refer to the person's race then it is probably a racial stereotype. It is racist. Good humor doesn't require that kind of reference. If you really care about not hurting people avoid that kind of humor.
I hunted with my family until I was in my twenties and had been in a war zone. After that I just could not enjoy killing an animal for pure sport.
I think I would still enjoy target practice for the skill side of shooting.