This slow-cooker dal recipe has a range of pleasing textures: red lentils and millet break down as they cook, and the toor dal, which are split pigeon peas, stay toothsome. Look for all three ingredients at indian markets or natural-foods stores. The crock pot does most of the work for this healthy vegetarian recipe, and a quick herbed yogurt added just before serving brightens up the flavors. Bonus: both the dal and the yogurt can be made ahead and the leftovers are wonderful.