Thanks for the input.
I don't know that we're into toting food on the plane although I understand your reasons for going that route. Our intention was to eat whatever was available to the the residents. I mean, they aren't living off of sea water. I didn't realize it would be so difficult or seem like such an odd thing to do.
As others have stated, the local residents buy their food at grocery stores on Tortola or the USVI. I suspect they eat their meals mostly at home. There are some small markets in the main achorages that others have covered... Having visited the islands since 1975, I think it's safe to say that they don't eat out at restaurants a lot. I'm aware that's a pretty big generalization, though.