Finally tried out Orinoco in the South End for lunch (it's behind Flour).
Had the beef empanadas and the chicken arepas.
I guess I was expecting something the size of jamaican patties or a turnover from the description on the menu, but the empanadas are the size of peking ravioli. It comes with a large salad in the middle of the plate and 3 empanadas around it with three small pools of green salsa (the salsa didn't have that much taste but the salad was very good). The empanadas seemed made of a corn-based dough and then deep friend with not much beef filling on the inside and the beef filling had dried out a bit in the cooking process :-(
The arepas was better...corn-based bread that reminded me of pita bread but thicker and the chicken was moister and tastier, and it came with a small dish of salsa you could pour into the arepa.
The empanada dish was $7 and the arepa was $6. The place was pretty quiet in comparison to Flour, which does have an excellent portobello sandwich. We swung by Flour to pick up a piece of tasty dacquoise cake because we weren't that full :-)