I've fried more grouse breast than I can remember.
Flour then an egg wash then highly seasoned corn flake and raw sesame seed.
The seeds get cooked very easily.
The starch in corn doesn't soak up water as fast as wheat starch so the coating is bound to stay crisp.
I would not use cous-cous pasta just because it's too tough for me to eat. Same for amaranth.
Nuts, like your hazelnuts, are nice and oily so cook up very well. Pecans and walnuts should be similar.