I've wanted to eat here during quarantine but couldn't find any information online so I emailed them! Here is what they said (they responded in <10 mins!):
"All of our menu is gluten free except the sandwiches due to the bun, frito pie, salmon, banana pudding, and macaroni salad. Even our cornbread is gluten free! Let us know if you have any other questions.
Green Street Smoked Meats Leadership "
We ordered online and marked all my items with the note "gluten free handling please!". My partner ordered the pulled pork sandwich (with bun that wasn't gluten free) and it was all packaged separately from my food. Overall, great experience and great food!
— No gluten-free information on the menu