When we went last year we sent some money ahead for the chef to buy some basics as well as cooking supplies - oil, flour spices etc. I was a little skeptical as well so we did the rest of the shopping in Mo Bay before driving to TB. We then bought fresh produce, fish, and lobster there in TB form locals. Produce car drives by each day and will stop at each house. We bought fish and lobster straight from the boat on the beach. Our chef had the receipt for the stuff she bought as well as change she used to buy fresh chicken. There are also many good little cook shops that have cheap meals, 3 dollar lunch at Likkel Diamond! Overall I thought the prices for food and drink at most places were cheaper than Negril.