I had navy beans, white rice, and fresh greens cooked in my slow cooker. It can be a bit tricky: the beans take the longest, the rice takes about 20 minutes to cook, and the fresh greens don't take long at all. The beans aren't tricky because overcooking them does no harm, but it sucks when the rice or greens are over- or under-cooked. I think I've learned to time everything; at least everything came out right last night. I added a bit of vegan soup broth and vegetable oil before eating, and had leftovers for another meal or two later.