OK, it's not really hidden but it isn't obvious. Passed by this place a few times but haven't tried it. On 37th street between 7th and 8th, closer to 8th on the north side of the street. I believe it's called El Sabroso...something similar. It essentially looks like a freight entrance, no decor at all, with large menu signs on the inside of the open doors. It's just a small counter with a few chairs, far back from the entrance. It barely looks like a real restaurant. But it intrigues me. Has any one been?