Rinconsito Caribeno, on Columbia Avenue NW, just east of 18th Avenue NW, in the Adams Morgan street food plaza, Mi Tierra Farmer’s Market, Friday, Saturdays, Sundays lunch, or as God allows. (Metro Trip Planner – opens in new window) [WaPo | Wash Examiner | Yelp]
The best Puerto Rican food around, this is street food only. Most of the other vendors serve El Salvadoran food and there is one decent Mexican place there (Viva Mexico). I recommend the stuffed pepper (most of all), the Puerto Rican lasagna, the mofongos, and the Puerco asado. The chicken isn’t bad but it is nothing special.