This was my first time visiting a BJ's. It has decent gluten free menu, but since I was unsure of what was celiac safe I stuck with a baked potato and steamed broccoli, which were both fine. I didn't question the waitress about cross contamination, I just got everything on the side and without seasoning. The restaurant itself has a nice atmosphere with a huge beer selection for the non-gluten free in your party. It's a sports bar, but not too loud.