If you want seafood, Lisa Elmqvist is an historic restaurant in an historic food hall. They are open lunch and dinner. Last month we had lunch there with my wife and my mother. We tried a bunch of different things and they were all outstanding. Every piece of seafood was cooked perfectly (and my wife and I are incredible picky people who work the food industry). Lisa Elmqvist | Fish, Seafood & Delicatessen in Stockholm