I had the opportunity to visit the Handlebar Cafe in Fells Point a few days ago for lunch. I loved its eclectic atmosphere. I had the bean burrito and it, the salsa and chips were delicious. If you are on a special diet, they should be able to accommodate your gluten free, vegan, and vegetarian needs.
The description from their website explains who they are:
Located inside a renovated warehouse in Fells Pt, we have created a unique space complete with a full service restaurant, bar and bicycle shop.
We offer Vigilante specialty coffee and espresso, wood-fired pizza and other dishes as well as craft beer, wine and house cocktails. We are a full-service bike retail and repair shop..
A few pictures are below.