Beetroot Quinoa Burger Vegan burger on a bun, made from beetroot, quinoa and lentils and raw oats as main ingredients. License License this image from Alamy Keywords beet beetroot beets bun burger food garden beet healthy home made homemade Indoors lentil lentils lettuce meal meat alternative meatless nobody oat oats plate quinoa ready-to-eat red tomato vegan vegan burger Vegetable vegetarian