Test them with a fork to make sure they are well done inside, they are not supposed to be pink in the center. A lot of grease will end up in the bottom of the pan. When the meatballs are done, place them on a paper towell to soak up the grease. Can be served with boiled potatoes, baked potatoes, mashed potatoes or rice. Denmark is a potato country, traditionally frikadeller is only served with some sort of potato.
Leftover meatballs can be stored in a freezer, they taste just as good reheated.