The original Founding Farmers is located right by my office, so I've been there a few times. The second outpost of this restaurant recently opened in the Park Potomac development, which is near our home in Maryland. My parents and I decided to check it out on Friday.
The menu is very similar to the DC location, with a focus on fresh, seasonal and regional foods. According to one of our servers, the vegan menu that is available in DC is not yet available in MD, but there are a number of vegetarian friendly options available at the MD location.
We started with an apple, brie and onion jam flatbread that was delicious, but immediately tripped my allergies - my own fault for not asking more about how it might have been prepared. (Side note - This past weekend has been a bit brutal food allergy wise).
For lunch, I opted for the veggie burger. The server asked me how I wanted it cooked, which flummoxed me a bit. But, they may have just been used to doing that when they heard "burger." The flavor was good, but it was a bit overwhelmed by the big bun, and I ended up eating it with a knife and fork. The accompanying fries were very good - you could taste the potato.
In addition to the veggie burger, some veg friendly entrees on the current menu include a number of the flatbreads, a roasted vegetable and avocado sandwich, a melted squash on ciabatta, the Many Vegetable Salad, and a number of pastas. Items containing tree nuts and peanuts are noted on the menu, but no other allergens are specified, so ask your server for more details if you have any allergy sensitivities.