This is my favourite pizza place.
They serve Italian style pizza, Norway in general for some reason prefers American style pizza. Very good pizza, I always order the Caesar. A small pizza is just enough food for me, a male human of average size, and my daughter loves the Margherita. The staff are always very sweet to her, and that makes it really easy to get her to come along.
It's not cheap, but quite reasonably priced, considering that there aren't cheap places in Tromso, even hotdogs and kebabs are expensive.