I guess Ital food and maybe some punani
Actually, it should be easier than sourcing food "at home". Here it's a bitch eating out when there are not many non meat options on menus. At home I just eat rice, rice, fruits, veggies, salad, more rice, more salad.......... once a week or so I have some fish. Honestly, the only good meal I eat out is at the local Jamaican place where I order the Rasta man Special and the owner asks tells me every time that it doesn't have any meat.....she can't tell us white folks apart
Plus, giving up meat is not something new for me, I gave up dead cow and dead pig last summer. I just gave up dead chickens 2-3 months ago....if I could only find a way to eat them while they are still alive

The ONLY thing I miss is pig....jerk pork, bacon, sausage, pork loin, pigs feet.....
Plus plus........I'm on a tight budget this trip and I can eat Ital food for small money compared to cow and pig that costs $$. Granted I've had good luck getting chicken, rice and peas for $300 at roadside places in the past.
I wonder if they have good tofu and soy products in Jamaica?