I got as far as "celiac" and the waitress immediately said "no worries, I've got you covered" and went straight to handwashing and new gloves. She was very clear on explaining which few items were not GF, and like Chipotle followed me down the line while other servers stepped back so their food would not be held near mine. I felt very safe and appreciative.
I did return a week later and my server was a little less confident but equally enthusiastic and careful with the mildest of prompting on my part.
— Very
— Most/All
— Excellent