Nooshi
Nooshi, formerly Oodles Noodles, 1120 19th Street NW, just north of K Street NW, Washington, DC (Metro Trip Planner - opens in new window) [Washingtonian | WaPo | City Paper | food-plan | openlist | Gayot]
A Pan-Asian place, which mixes cuisines, with an emphasis on noodles. Yummy if sometimes just a bit too sweet. When in doubt, order the peanut sauce.