tiamat360 has the recipe pretty much exactly. The things I would also mention: grate uncooked carrot on the very smallest holes of the grater, so you get incredibly fine shreds; mix the carrot with the rice while the rice is still hot and they will become a synergistic substance. Butter/margarine is optional, but I don't think salt is, it's just not the same without. Herbs that go reasonably if you feel like it include savory and basil, though I would suggest only one small dash of only one herb/spice because it's meant to be simple comfort food. I haven't done it myself but people tell me cinnamon goes. Cumin doesn't even though you think it should.

Also did I ever give you my mustard green beans recipe?