Mix coriander, cumin, garlic, bay leaf, salt and pepper in a small bowl; set
seasoning mixture aside.
Put eggplant in bottom of a lightly oiled 14 x 11 x 2-inch baking dish. Sprinkle
with some of the seasoning mixture, a little oil and some parsley. Top with zucchini,
then onions, green peppers and tomatoes, sprinkling each layer with some of the
seasoning mixture, oil and parsley. Bake, covered, at 400 degrees F for 30 minutes.
Uncover and bake for 30 minutes, or until vegetables are fork-tender.