appearance colored colorful coloring colors coloured colourful colouring colours contrast contrasting cooking courgette cucurbita-pepo culinary cut edible fast-growing food fresh fruit golden-zucchini health health-benefits healthy raw sliced summer-squash surface surfaces texture textures vegetable vegetables yellow yellow-squash yellow-straightneck-squash yellow-zucchini zucchini beneficial carrots daucus-carota flavouring nutrition nutritious root-vegetable taproot variable variety