Preheat oven to 350°F. In ... sliced and seeded squash and zucchini with onion and ... cream of mushroom soup and 3/4 cup cheddar cheese. Bake at 350°F for ... Serves 6 to 8.
Cook squash until tender in salted water. ... uncovered. If you like, this casserole freezes well. I use Corningware and freeze 3 casseroles. Serves 8.