Unlike the cheap imitations, a proper Japanese (or Korean) rice cooker will hold rice at serving temperature for hours - for days - with no loss in quality and no scorching. Those $10 cookers work fine for cooking, but if you don't take the rice out of the cooker within an hour or so...

13/09/2011 Rice Cooker

Easy recipe from cans. Not really necessary to saute anything; it
could all be added to the crockpot raw, or tossed with a bit of oil
and wilted in a microwave oven.

Into a 2-quart crockpot add:

3 cups sauteed thin sirloin strips (these could have...

Japanese-style rice is more substantial and filling than long-grain
rice. With a few add-ins it's a nice meal. The chicken scraps,
having added flavor during cooking, will be lifted out and discarded.
Herbs are good to eat! (Except for the thyme stems.)