Well, it varies from south to north, but I guess meatballs with gravy and boiled potatoes is sort of a national dish in a way.. :-)

Har du provat Toast Skagen?

http://www.sweden.se/eng/Home/Lifestyle/Food-drink/Swedish-culinary-classics/Toast-Skagen/

Not sure what our national dish is, but we do make some amazing Conch Salad and Conch Fritters!

Conch fritters? Now you've piqued my interest. What's that? :-)