Traditional Norwegian$$$holmenkollenMon-Fri 12:00-22:00, Sat 13:00-22:00, Sun 13:00-21:00
Frognerseteren at the top of Holmenkollen is the 1891 dragon-style mountain restaurant 30 minutes by metro from central Oslo, with traditional Norwegian.
Signature: Frognerseteren apple cake, Romegrot sour-cream porridge
Order: Apple cake at Kafé Seterstua; reindeer at Finstua upstairs.
Tip: Sunset window seats on the Oslo-facing wall fill first; the casual cafe downstairs is walk-in only.
Traditional Norwegian$$gronlandMon 11:00-22:00, Tue-Fri 11:00-00:00, Sat 12:00-00:00, Sun 12:00-22:00
Asylet on Grønland in Oslo's old town is the wood-panelled 1730 merchant-yard timber building, one of the city's oldest, serving kjottkaker.
Signature: Kjottkaker with mash, Reindeer stew
Order: Kjottkaker with brown sauce and lingonberry; reindeer stew in winter.
Tip: The courtyard runs late spring through summer; the back-bar fireplace is the winter seat.
Traditional Norwegian$$$kvadraturenMon-Fri 11:30-23:00, Sat 17:00-23:00, Sun closed
Engebret Café at Bankplassen 1 is Oslo's oldest continuously operating restaurant, founded 1857 by Engebret Christoffersen, in a 1760s listed building.
Signature: Lutefisk in season, Reindeer fillet
Order: Lutefisk in the November-December season; reindeer fillet year-round.
Tip: Open from 17:00 weekdays; the lutefisk season runs through Advent and books out by mid-November.
Traditional Norwegian$$$sentrumMon-Sat 11:00-23:00, Sun closed
Stortorvets Gjæstgiveri at Grensen 1 occupies a 1699 listed building one corner from Stortorvet square, with a la carte Norwegian classics, a courtyard.
Signature: Lutefisk in winter, Smorbrod platter
Order: Lutefisk plate October to Christmas; smorbrod at the cafe in summer.
Tip: The courtyard runs May to September; lutefisk season books out by November.
Modern European$$$sentrumMon-Sat 11:00-23:00, Sun 16:00-22:00
Theatercaféen on Stortingsgata is the 1900 art-nouveau brasserie opposite Nationaltheatret, in the same family for four generations, with a portrait gallery.
Signature: Norwegian smorbrod, Plateau of seasonal fish
Order: Smorbrod at lunch with a glass of Norwegian aquavit.
Tip: Lunch service has the easiest seats; the room books out at dinner around theatre programming.
Scandinavian$$kvadraturenMon-Fri 11:30-22:00, Sat 12:00-22:00
Café Skansen on Rådhusgata at Christiania Torv plates Scandinavian short-distance produce in a small fireplace-warmed room, with summer outdoor seating.
Signature: Norwegian seasonal mains, Smorbrod platters
Order: Plate of the day with smorbrod sides.
Tip: Summer terrace seats are first-come; the back fireplace room is the winter pick.