The nation's capital has seen flurry of excitement over the past few years, particularly in its restaurants, due in no small part to the president and first lady's tendency to dine out in the district. In addition to world-class establishments maintaining their refined reputation (see: Blue Duck Tavern, Rasika), the nation's first couple have been known to frequent some hipster joints. So it's not a coincidence that a bevvy of new casual—but truly excellent—eateries have popped up in formerly no...