veggie broth - try to use one with a delicate flavor, or water down a strong one
boil your butter beans and start cooking your rice in the broth (rather than water). then sautee the cooked beans with rosemary, a good bit of olive oil, and garlic. the beans are done when the oil has gotten cloudy and the beans offer almost no resistance to the tines of a fork. hopefully you (or your rice cooker) will know when the rice is done. spoon the beans over the rice, and if it's too dry add some of the cooking oil from the beans.
this shit is amazing.
PS, thanks super mod supercarrot for helping me find my recipe!