This recipe is gluten free and contains both sweet and savory flavors. It is also quite pretty due to the contrast of colors from the black rice, brown rice, and the red lentils and optional cranberries. The rice can be made 3 days in advance or even frozen. The entire dish tastes better the second day, so you can make it ahead of time and just reheat the day you are serving it. Adapted from Martha Rose Shulman, "The Very Best of Recipes for Health."