I developed this recipe this summer when the local produce man had orange and grapefruit sized round zucchini for sale. I've made it since, using regular zucchini. If you leave out the sausage it would be a good vegetarian dish. The leftover sauce is wonderful over pasta. Enjoy this with some good garlic bread and a salad! This can be prepared ahead and refrigerated, then popped in the oven when it's time for dinner. Recipe doubles easily.