No, they cannot; bearded dragons are unable to digest any of the grains, so none of them would be suitable for the bearded dragon diet.
Either raw or cooked, they cannot handle them like humans can, and ingesting rice could make your dragon sick.
Avoid rice and any other grains as far as feeding them to your bearded dragon goes.
"white rice 1..." by wintersoul1 is licensed under CC BY-NC-ND 2.0