Gluten Free Western Food
There is a Pret A Manger www.pret.hk in one of the arcades near causeway bay station (sorry I don't remember the name of the arcade but I do know they pop up on google maps). My husband is gluten intolerant and we found this place on our last day in Hong Kong.
All the soy sauce in everything was a food mine field for him so we often ate at some of the Indian places dotted around Hong Kong.
Good luck with your gluten free hunt, and hopefully you find something a bit closer than causeway bay. about 5 years ago