28 oz tomato sauce • zucchini medium sized, sliced lengthwise into thin (between 1/8-1/4 inch) strips • yellow squash, medium sized sliced like the zucchini. (zucchini and squash replace traditional lasagna noodles in this recipe) • fat free mozzarella • fat free ricotta • mushrooms, sliced. change amount added to suit your taste • onion, thinly sliced • small-medium eggplant, diced • baby spinach • boca crumbles • basil • italian seasoning