The Occidental Grill is a nice place to eat.  It is located in the Willard Office Building:

1455 Pennsylvania Avenue, NW
Suite 100 on Fountain Plaza
Washington, DC 20004

The food isn't too expensive and the restaurant has pictures of presidents everywhere...

I totally recommend for a nice lunch or dinner.

Take care,

Charlie Jean

So many great places depending on where you are and what you're in the mood for...I recommend two sites to explore.

1) Washingtonian is the standby in this city for restaurant dining www.washingtonian.com/dining/default.asp

2) I also like washingtonian.opentable.com/start.aspx?m=9&n=35 because they put together several reviews from Gayot and other sites which you can link to for free (usually Gayot requires a subscription).

These are well-known places.  No secret gems in the lot, but you probably won't go wrong.

Spots in DC - Here area few of my favorites:

Ceiba - A fusion Latino-American cuisine... I am in love with the Jamaican "Stamp and Go" Crab Fritters!  701 14th Street, N.W - Same owners as Ten Penh and DC Coast (both superb as well)
http://www.ceibarestaurant.com/

Felix - Cuisine is Thai, Italian, Filipino and continental and most ingrediants used are organi.  2406 18th St NW - It is a restaurant during the evening and a bar/club at night on the weekends.

Smith & Wollensky - Steakhouse, excellent for real carnivores! 1112 19th Street, NW

xoxox
Anik

is very nice, very expensive, and still you can sometimes get a table the same evening, which is pretty unusual for a place this good.