There are a couple of restaurants in Sørkedalsveien next to the Majorstuen T-bane station but somehow they are not popular. Maybe because they are a bit old-fashioned (compared to, say the ones in the Colosseum area). And yet, they may have a lot more to offer than one thinks. We have been to the Larsen restaurant twice and both times, we had a very good meal.
Last time, my wife ordered the dish of the day which was lam in wine sauce (138 NOK).
It is original to use lam meat with wine sauce. I am thinking for example of "boeuf Bourguignon" (beef) or "coq au vin" (roster or, nowadays, chicken). But, well, it worked well as the lam was thin, and my wife liked it.
I went for a pasta dish (142 NOK) which was also quite original with a combination of beef, pesto and chili.
There too, it worked better than expected. The meat wasn't tasteless (as it generally is when cooked with pasta), the chili wasn't making the dish too spicy (just a bit) and overall I also liked my dish.
We had a guest with us this time who had the chicken burger (138 NOK). The chicken was tasteful with some spices and mayonnaise. It was served with tortilla chips and salsa sauce.
Our friend was also satisfied with it.
Finally, our son had some grilled chicken breast with french fries. The dish was well prepared and not "just-for-children".
So, to sum up, we were all happy with our dinner. I also checked some reviews at Google+ (in Norwegian) and other customers were also positive about this place. It is a nice place with good food and correct price.