The kids' menu includes a grilled cheese sandwich served with goldfish crackers and grapes.
Since you referred to the buffet, you may not know Akershus has changed. There still is a buffet for cold items and soups, but you now order your entree from a menu of about a half dozen choices. In theory, you are still supposed to be able to eat all you want of everything. In practice, this would be hard and make for a very long lunch.