Rostaa Quinoa Red. Red quinoa is well suited for cold salads and similar recipes as it retains its shape better after cooking than white quinoa. 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 as well.