Thank you both for your feedback. It did run through my mind that I'd be better off running down the street for food cooked by actual Jamaicans. At any rate, I cooked up the above recipes, portioned some out for our dinner, packed it up and dropped it off. My neighbor recieved it with grace and enthusiasm, and later called and asked, laughing, "are you sure you're not Jamaican?" (if you've met me, you know how funny this is.)
Well-recieved though the food might have been, here's my own assessment: The oxtail recipe is pretty good, not that different from what I've eaten at the restaurants on Howard St. I would improve it by flouring the oxtails and browning them first, and using stock for the cooking liquid. I'd also give the aromatics a quick saute before dumping them in. At the last minute, I couldn't find broad beans and had to sub limas, but I think they worked OK.

The rice and peas didn't do it for me: I subbed-in low-fat coconut milk (knowing my friend's aversion to anything unhealthy) and it seemed to me to be overpoweringly coconutty and a bit gloppy. It's possible that I don't have a correct frame of reference, but the rice and peas I've eaten at local restaurants didn't have an overpowering coconut flavor. Better knife skills would probably help, I also didn't see the point of sticking the whole pepper on top; it didn't seem to offer anything to the rice.

The callalo, OTOH, is something I'm definitely going to make again - it's a beautiful spinach-y green, but took to a fairly hard cooking pretty well. Again, I'd have sauteed the aromatics and maybe minced them a bit finer. Sparky pronounced it "too spicy," but though this is a flavorful prep, I could barely discern the minced scotch bonnet.

Baked plantains were incredibly easy and not as slimy as I find their fried counterparts: I will also be doing this again. I'm generally not a fan of ripe plantains, nice to know I like this version.

I also tried
this recipe for Jamaican hardo bread with moderate success: it would have improved with a slightly longer final rise, but gave me that wonderful, non-styrofoamy white bread that's my preference for BBQ (I know, anathema to Q lovers, but I prefer its slightly more substantive texture to Wonder Bread) Next time we run out of sandwich bread, I'll be making a batch.
