Rostaa Quinoa Black pack of twoRostaa Quinoa Black. Black quinoa has a distinct sweet and earthy taste, and it's remarkable black colour is great for styling your dish. Known to be a superfood, Quinoa is not only a great source of protein and fibre, it also contains Iron, B vitamins, Magnesium, Phosphorus, Potassium, Calcium and Vitamin E. It is one of the few gluten free grains that is a complete protein with all nine essential amino acids, along with phytonutrients and minerals