Depends on what you consider "generic food". "Generic food" around here would probably include caviar in tubes and filleted mackerel in tomato sauce (which looks a hell of a lot worse than it tastes, by the way). Some people will also have geitost, which is just a soft brown goat cheese that's slightly sweet.
But if you come across a household that proudly serves you a tin of leverpostei, find an escape route. Pig liver pâté does not a sandwich spread make.
The four essential food groups are sandwiches, aquavit, potatoes, and meat. Speaking of sandwiches, did I mention that butter is considered by some to be as essential as bread? Butter is spread onto the bread as a foundation for whatever else is to come, be it fish, cheese, or jam.
Eh. If you like sandwiches, you'll do just fine. Not everyone likes butter quite so much as the others, and the bread is damn good (provided you find a bakery that still believes in the old tradition of "it isn't bread unless you can kill something with it"). Caviar-in-a-tube is quite good, but tastes nothing like any other caviar you may have had. Mackerel in tomato sauce is also very good, but tastes nothing like any other fish product you may have had. Geitost is delicious, but tastes nothing like any other cheese you may have had.
Add to this pickled herring, jams made from fresh and quite possibly local berries, some sort of smoked fish, and you've got yourself a Norwegian breakfast/lunch/dinner. And let's not forget the chocolate and caramel spreads that delight the children (Norwegians eat sandwiches instead of cereal most of the time. The sweet stuff has to enter into the growing child's diet somehow).