Ground oats and millet are similar to ground rice. Both grains can be cooked in a similar way and have a mild, nutty flavor. Oats are higher in fiber, iron, folate, thiamin (vitamin B1), magnesium and zinc than rice, while millet is richer in protein and healthy fats than rice.  Both offer more complex carbohydrates than white or brown rice, making them a healthier alternative for those looking for an easy grain-based side dish or meal replacement.