Solsiden
Owner Lars Jon Amundsen converted an old soap factory into "the sunny side" back in 1993 after running award-winning shellfish festivals and sushi bars and being inspired by everywhere from Californian coastal gems to Parisian bistros. With its high ceiling and huge windows facing the sunny side of the capital, this summer-only seafood restaurant is housed in a former warehouse right by the harbor. Here, it's an open-to-all, smart-casual affair where you'll see families, dates, and celebrities tucking into shellfish side by side. Follow the lead of the many locals who call this their favorite spot and indulge yourself with a plateau de fruits de mer (seafood platter, the house specialty), or opt for one of the other longtime favorites like the turbot with horseradish puree. In typical Oslo fashion, the dining room isn't at all showy, allowing the seafood to shine. There are two sittings after 6:30, and the place is open only from May through September, making it all the more special.