Pupuseria El Buen Gusto
Pupuseria El Buen Gusto, 10012 Main Street, Fairfax, VA, 703-218-3489 (Metro Trip Planner - opens in new window) [Yelp]
Surprisingly good, their tacos are excellent and fairly authentic. No one there speaks English. Limited menu. Very good chicharron (fried pork) with yucca. Worth a visit. N.B.: Restaurants in this locale tend to be yummy but don’t usually last long.