Restaurants with Gluten Free Menus in Northern Virginia Area?

I am specifically looking for restaurants in Loudoun County, Tyson's or Reston. I have a friend visiting from out of town ,and I am looking for restaurants with gluten-free menus for her. Does anyone know any accomodating restaurants outside of the chain restaurants (PF Changs, Outback, Bonefish, Don Pablos)|||www.triumphdining.com or www.clanthompson.com|||Treat your visitor to some gluten free goodies from Whole Foods (Vienna). They have a great selection.