A favourite when it was in Borough Market, Glas remains a mecca in its new location perched above Upper St in Islington. It's still the best Swedish restaurant in town and its 'grazing' portions (from around £4 to £8) allow you to try a number of specialities, including the phenomenal herring three ways and salmon pudding with horseradish sauce. The three-course set lunch is around £15. The welcome here is always warm and the service friendly.