The Keys menu does offer some options for their meals to be gluten free accommodating. I had their GF Apple & walnut pancake and you would never know it was GF!
Quality & Quantity
Is there a gluten-free menu?
— Gluten-free items are marked on the main menu
How much of the menu is available gluten-free?
— Some
How would you rate the taste and quality of the gluten-free food you tried?