I ordered a simple hamburger with onions and tomato from the gluten-free menu. I was brought a regular hamburger bun. I asked if it was the gluten free bun, and the waitress was like, whoops. She took the meal back to the kitchen to have it redone. Good news: they comped my meal. Bad news: my lips and throat swelled up a bit after eating the burger. Either the cook just moved the contaminated burger from wheat bun to gluten free bun, or there was something in the bun that i reacted to.
Yes