Though technically a seed, millet offers similar health benefits to other grains and can be prepared in many of the same ways. It looks like little yellow pellets of birdseed (which is, in fact, one of the ways it is used) but it cooks up into a tender grain that has a mild corn flavour.
It is both nutrient-rich and offers numerous heart-protective properties in addition to other benefits. Plus, it is something unique that can help add some flavour variety to your gluten-free diet.