www.wecravesushi.com I went to Crave Sushi the other night, since that place is just opening... it should easily accommodate a 15+ party on Friday or Saturday. It's also open after hours Fri-Sat. Food/Service was good and its really nice there.
I agree with Fatty about Cyclone's...but only if you can reserve a table. Good food, good Ritas, good ambiance...not too expensive and it's a nice place (for a Tex-Mex joint) You can always go to Molina's as well. Food is decent, but the ritas are strong and the Jose's Dip is delicious
Hey nothing is wrong with Indian food! You can rent out the wine rooms at Ruggles. I think it is 50 a room.
Well, you might try Kubo's in Rice Village for Sushi. They have a very good staff. When I go with a group we share orders, and we have some people enjoy some Saki, others don't. There is a happy hour daily, with very good sushi specials, and it runs longer Sundays. Mo Mong is nice for trendy Vietnamese in Montrose. They have a nice bar. Or you can go to Van Loc, for something a little cheaper.
Over the past few years, we've always gone with a Brazilian steakhouse (Green Field in the DC area) for large parties. The concept ideally lends itself to situation.