2 med. zucchini, sliced
2 med. squash, sliced
1 lg. onion sliced into rings and separated
2 to 3 cups shredded cheddar cheese

Spray casserole dish with Pam. Layer 1/2 of each of the above listed ingredients in order listed, then repeat. Bake in 350 degrees oven or in microwave on High until vegetables are tender. (Approximately 1/2 hour in oven or 15 to 20 minutes in microwave). Once cooked, if desired, broil for a couple of minutes to lightly brown top. Serves 4.