I am a native NYer who has been living in DC for the past ten years. I am going to be in town for a conference on Thu night and am looking for someplace wonderful to have dinner (on my own dime). The conference is at the Plaza Hotel, but that is not to say that the dinner has to be nearby. Key criteria are: not ridiculously expensive; near a subway station; won't make a solo diner feel like an idiot. Have been considering Lupa, Pigalle, and the like. Any recommendations?