I've been here twice now. Once in 2017 and I was told very graciously by the bartender that there was nothing on the menu at the current time that could be modified safely for a celiac. I really appreciated his honesty as well as his empathy that he thinks it's crazy they can't cater to a lot of food allergies there. Decided to give it a try again more recently and still could not eat there. The menu isn't marked and the server we had was not knowledgeable at all. I chose to leave because I didn't feel safe eating there.
Great food, options will depend on what’s on the menu that day. The waitstaff was knowledgeable and nice, and I didn’t get sick. However I wouldn’t trust this place if it got really busy—it can be pretty chaotic because of how many people they cram into the tiny diner.
Had a few gluten free options, chicken enchiladas - waitress unaware soy sauce contained gluten. Good food.