I contacted Zim’s to see if they were able to accommodate CD. Here is their response,
“Hello! Yes, we will try to accommodate your allergy as best as possible. Unfortunately, that does rule out anything fried as all of our fryers are connected and we don't have a separate bay/filter for gluten free. If getting anything seared, ask that it's done in a separate pan and not on the flat top. And please just make sure to inform your server of your needs and we will be happy to take care of you to the best of our ability!”
— Somewhat
— Gluten-free items are marked on the main menu
— Some
— Excellent