Looking for Loudoun vegan friendly lunch spot - Help!

[3crazydogs]

Folks - my wife just sent me a note that she is taking two vegan colleagues to lunch today and is looking for a place in the Sterling/Dulles/Ashburn area. Any advice you can provide will be greatly appreciated. I'm searching hard for her but as it's close to lunch I thought I would ask for your help while I search. My wife is not a vegan but is a vegetarian.

Thanks in advance!