Wash and peel zucchini.
Dice half of the zucchini and slice the remainder.
Brown beef and onion and add seasonings.
Mix with bread cubes, diced zucchini, 1/2 cup cheese and 1 can tomato sauce.
Spoon mixture into buttered 1 1/2 quart casserole.
Arrange sliced zucchini on top and sprinkle with remaining cheese.
Mix the other can of tomato sauce with water and pour over the casserole.
Cover and bake in a 350° F.oven for 45 minutes.
Uncover and continue baking until zucchini is tender, about 15 minutes longer