Prepare stuffing mix as per ... alternate layers of zucchini and onions with pats of ... stuffing mix over top. Cover with foil and ... and sprinkle over casserole; put back in oven uncovered until cheese melts.
Cook zucchini and onions in boiling water ... in bottom of casserole, spread with zucchini mixture and top with remaining stuffing. Bake at 350 degrees for 25 minutes.