Eggplant and zucchini casserole is a healthy and delicious way to enjoy these two vegetables. Simply slice the eggplant and zucchini into rounds, then layer with tomato sauce, mozzarella cheese, and Parmesan cheese. This dish is high in fiber, vitamins, and antioxidants, and is a great way to get your daily dose of vegetables. To make it even healthier, try using whole wheat breadcrumbs and low-fat cheese.