Rumba Café, web site, 2443 18th Street NW, Adams Morgan, Washington, DC, 202-588-5501 (Metro Trip Planner - opens in new window) [WaPo | MenuPages | City Paper | openlist | Yelp]
A mix of Colombian and Puerto Rican dishes, with some other Pan-Latin elements thrown in. I have yet to go. Lots of arepas. Lots of mofongos (mashed plantains and garlic). It looks interesting.
Cancun, 11260 Georgia Avenue, Wheaton, MD, 301-949-9838 (Metro Trip Planner - opens in new window) [Yelp]
Mostly a Mexican and El Salvadorean restaurant, but they serve some Puerto Rican specialties on weekends. Sleeveless shirts are not allowed, that kind of place. Alas, no mofongos, however, which means not enough garlic for my taste.
See also Banana Café, under Cuban, they have some Puerto Rican dishes.
