In a bowl combine flour with half of the salt and pepper and place in a shallow dish.
Beat eggs and place in a shallow dish.
Combine potato flakes, remaining salt, dill, lemon rind and cayenne and place in a shallow dish.
Dredge fish in seasoned flour and shake off excess; dip into eggs; press into potato flakes.
Line a baking sheet with foil and brush with melted butter. Place fish on baking sheet; turn fish and brush with butter. Bake in oven for 8 - 10 minutes, or until golden on bottom; turn and continue to bake for 8-10 minutes, or until fish flakes easily and is golden brown.