Apparently, spaghetti and ketchup is a Swedish delicacy (OK, technically, dad and sis ate macaroni and ketchup, but, still):
... If you have left-over spaghetti all you need to do is heat it up and sprinkle some moderate amount of ketchup on it and breakfast is served. An awesome duo, like peanut butter jelly but with class, taste, refinement and elegance. ...
Complete with stomach-turning photo.