Although at home nothing beats fresh whole grain rice simmered out from raw grain. But on the trail its too time consuming and then the pan is water intensive to clean.
With the advent of frozen cooked brown/whole grain rice at Trader Joes, Whole Foods, etc., and already cooked vac sealed of same at TJ's (no refrigeration required) its just a matter of a quick session with a covered pan and a little water for steam generation to make it work...and very well it does on the trail.
That's how rice gets done for me on the trail...
The other, much quicker and easily cleaned up option for hot grain, from raw, on the trail: Quinoa. 15-20 minutes from raw to fluffed. And any leftover is great the next 'morn for breakfast with a little honey, maple syrup, etc. Done.