You know, cramped storefronts, don't look great, have at best a few seats, but the food is just GREAT.
Not looking for full-service restaurants/cafes.
Needs to be downtown or Metro-accessible for a lunch break, so please don't send me to 13th & H NE, or Anacostia or Adams-Morgan. I'm also open to Montgomery Co. since I live there, or N PG County.
Not only Chinese, but Thai or Vietnamese.
I already know about Thai X-ing and the 2 Viet delis in Chinatown.