The smörgås of Göteborg looks good, too. Smörgås Nisse HB
The Norwegian open sandwich,smørbrød seems to be called matpakke. However, in Norway, prices are expensive. Readiness is necessary so that a traveler like us eats at a Norwegian restaurant.
The open sandwich is called smørrebrød in Denmark. As for it, a fish / meat / vegetables are put on the brown bread,Rugbrød. The small restaurant of Copenhagen,Ida Davidsen is the popularity that is great since opening of 1888. The restaurant near Tivoli,Tivolihallen is famous, too.
I’m interested in open sandwiches in North European cooking most.