What about The Hamilton? New and getting a lot of buzz.

Or one of the two new places from the Passion Food group (the same folks behind Acadiana, Ceiba, DC Coast and Passion Fish)? Both District Commons and Burger Tap and Shake are right next to the Foggy Bottom metro and seem to be pretty lively when I've walked by.

Any night but Thursday works for me right now, though I have lots of random other things scheduled.