Some parts of recipes just don't make sense, do they? Like a "dash" of pepper. Well, what the hell is just a dash of pepper gonna do to an entire casserole? Or a "pinch" of salt. As salty as Americans like things, I think they mean a LAYER of salt, don't they??
The recipe might as well have "a drop of pee." Will make about the same amount of difference as the pinch of salt!