Also called courgette or summer squash. This flavorful squash is available at its peak all year round. Zucchini can be chopped, sliced, steamed, boiled, grilled, stuffed and baked, barbecued, fried, or incorporated in other recipes. Lowers cholesterol, high in Manganese and contains folate, vitamin A and potassium. There are 20 calories in one cup green zucchini.