We were in Baltimore a few weekends ago for a show and visited the Lost City Diner. I was with my mother and sister, who are both meat-eaters. They both seemed to enjoy their meals as well.
Since I was in the mood for something horrible for me, I got a fried vegan chik'n sandwich. They used what seemed to be Gardein patty, but with a delicious crispy breading. I asked for the chipotle horseradish sauce instead of veganaise, which was deliciously spicy and tangy.
I also got a vegan ice cream soda with strawberry seltzer. I wished they had strawberry vegan ice cream but were unfortunately out. The soda was still good.
My only complaint, if I needed to have one, is that there were only two servers there for the whole (albeit tiny restaurant). Initially it was fine because we had an early lunch, but as it got busier the servers really had to hustle. In addition to serving everyone in the restaurant, they had to make the ice cream shakes. They did what they could, but it seemed like they might get swamped and service might slow down.
Cons: Only two servers for the whole place!!!