Yes — plain cooked rice is gentle and safe.
Plain white rice is the classic upset-stomach food for dogs — easy to digest and binding. Brown rice is fine too but slightly harder on sensitive stomachs. No seasoning, no fried rice.
Enjoy — this is a safe treat in sensible portions. Introduce any new food gradually and watch for individual sensitivities, just like with people.
Get the printable list of the 30 most dangerous foods for dogs.