Chick-fil-A offers gluten free grilled chicken nuggets and many locations have dedicated fryers for fries. Check with your location if cross-contamination is a concern for you.
about a week ago i ate here and got my usual - grilled nuggets, fries, and frosted lemonade. i’ve eaten this meal multiple times a week for months and never had an issue, but this time i think i got cross contaminated. i experienced stomach cramping that night and itchy skin for the next day or two. this was the only thing i had eaten all day long. i did order through the app and didn’t have the chance to disclose my allergy, though, so that was my mistake. this is the only negative experience ive had at this location since going gluten free.