Sunflower Vegetarian Restaurant
Sunflower Vegetarian Restaurant, web site, 2531 Chain Bridge Road, Vienna, VA, 703-319-3888, just a bit south of Nutley Road (Metro Trip Planner - opens in new window) [Washingtonian | WaPo | City Paper | food-plan | openlist | Yelp | Gayot]
Many vegetarian dishes, good quality ingredients, but I find each dish combines too many ingredients. Many vegetarians love this place, though. If you want it really spicy, speak up, don't just say "spicy" or they will treat you like a wimp.
For real vegetarian food, see Indian and Southern Indian.