The Quay Street Kitchen is my favorite vegan find in Galway. They are great about providing and labeling vegan options on the menu (there were about 3-4 vegan entrees you could have.) The atmosphere is cozy on a cold night and they play some classic jazzy tunes to enhance the mood.
I went two nights in a row: the first I got their tofu burger with sweet potato fries. The burger was great, with lots of roasted vegetables to add to the nice tofu base. The second night I ordered their vegetable curry, which had a slightly Indian taste but was rich and satisfying (even without dairy). Both nights I got their vegan desert (which I think changes often). It was a raspberry chocolate sort of cake made with sweet potatoes and served with vegan ice cream. Nice way to cap of a good meal.
I highly recommend it! The restaurant is rather small but busy too, so service can be a bit slow at points.
Cons: a little slow on service