Red quinoa comes from the flowering plant Chenopodium quinoa, which is native to South America. Uncooked, red quinoa seeds are flat, oval, and crunchy. Once cooked, they puff up, forming small spheres similar in shape to couscous, and take on a fluffy-yet-chewy texture. Red quinoa is also naturally gluten-free, making it a good choice for those with celiac disease or gluten sensitivity. This ancient seed is rich in fiber, protein, and many important vitamins and minerals.