I have major trouble finding gluten-free options in the Dublin Airport so I just wanted to post that the Cafe Bar in terminal 1 at gate 109 (Ryanair gates) has a gluten-free pre-packaged sandwich ready to go. The package is marked gluten free and all ingredients are listed. It's chicken breast, lettuce, tomato, red onion, mayo and a GF sliced bread. Not the worst pre-packaged sandwich I've had by far. It was ok to fairly good. That's all there is though as far as GF mains options. There are potato chips though.
— Gluten-free items are marked on the main menu
— Not Much/None