3 places I recommend
These are the three restaurants in Oslo I have eaten at myself and would recommend.
Where a section has more than one place, they are numbered from my favourite downwards. 
marks the ones not to be missed.
Don't forget you can take the map with you
The Vulkan branch looks over the Mathallen food hall, with beef from Jæren. Døgnvill Burger is the Best burger in Oslo...actually it's the only burger I've ever had in Oslo so it's the best one I've had at least.
Address: Vulkan 12, 0178 Oslo, Norway
Dinner in Oslo is probably the best Chinese restaurant there. If you compare it to other Chinese restaurants in like London for example it would seem average but after days of Norwegian food your perspective will change.
Address: Stortingsgata 22, 0161 Oslo, Norway
Alex Sushi in Oslo has delicious sushi and really fresh fish especially since a big salmon producer is also an investor in the restaurant (Nova Sea). It has been around since 2001 and is one of Norway's oldest sushi restaurants. It's a must if you're in Oslo (make sure to book ahead).
Address: Cort Adelers gate 2, 0254 Oslo, Norway
