Iceland is an expensive country. Armed with out of date guide books we stumbled into Nesterwhatsit called over the road, expecting reasonably priced burgers, only to be met with £25 main courses. So, we turned around, walked out and went to Plassid. We're glad we did so. Plassid offers burgers at around £11 - £12 and pizzas for under £10. Three of us had burgers, which we're big, juicy and tasty. Great fries too. My daughter had an enormous pizza, but instead of the extra bacon she ordered, she seems to get extra onions. When we pointed this out to the manager (?), he deducted 1000 ISK (about £6) off our bill at once.
As I say, Iceland is an eye watering beautiful and eye wateringly expensive country. Plassid easily represents the best vale for money we have had on this trip. The restaurant is clean, relativly stylish and offers simple but well prepared food at a fair price. Recommended.