Montys of Kathmandu is a restaurant on Eustace Street in Temple Bar and serves its own commissioned beer. Its typical of an asian-style lager and similar in taste to Tsing Tao, which is not saying much at all. Tastes a little like dishwashing liquid, even has the big bubbles inside the bottle too!!
The food here is great though, and if you want the dumplings you need to order them in advance. Get them!
Gruel on Dame Street, another good spot, serves the organic ale and 1698 from Whitstable Bay. These beers are real tasty, and go down well with any food.
This is one of these great places you can go for an hour or two, get some grub, drink good beer, and get some more grub with a beer.
Both places I'd recommend
BTW - does anyone know who brews the beer for Montys? I have an inkling it might be the brewers out in Trim, Co. Meath.