i make a breading out of those very things.
another option, if you have a brazilian community, is something called farofa, which (best i can describe it) is like fluffy salty sand that you sprinkle on things. it is made of toasted cassava, or yucca, or whatever you call that tuber thing, flour, so it is GF. Breading stuff in farofa is absolutely the shizzle.
Can't remember where you are, but there are places in NJ and MA and Chicago-ish where this stuff is in the "latino aisle" of the supermarket. http://www.amazon.com/Seasoned-Cassava- ... B005CJ52O8
(note -- the pics of meat on it are not because there is meat in it, but because people like to dip meat in it at barbecues. occasionally you will find a bag with bacon pieces or something in the recipe, so always check the ingredients, but theoretically it is vegan and GF).