I stopped by this place, purely by chance - and got one of the best burgers I have had. Forget the International fast food joints - this is the place if you want a quality burger. I went back a couple of times, and both their chicken and beef burgers are fantastic. The place is run by two brothers who both speak fluent English. Although they provide a delivery service, they also serve over the counter. All the food is prepared on site to their own recipes - so you know you are eating quality meat. It is also cooked to order, so you might have to wait a few minutes - but it's well worth it.
The bar is situated a few steps from the Drapal pub, near the Teresian Gate. I'm not usually a great fan of fast food - but this was excellent.