I've been to this O'Briens and others in Dublin over the last few years and it's lovely to have a choice of a gluten free sandwich with whatever toppings everyone else can get. The staff know me know and straight away change their gloves and get the gf chopping board out. Very friendly and professional staff.
I've never had a bad reaction to any of the gf sandwiches
— Very
— Gluten-free items are marked on the main menu
— Some
— Excellent