@WBYeats,
WBYeats wrote:But that urn is the place where rice is stored first before being scooped onto the plate! What is that urn called?
Americans don't tend to eat rice often enough to have a "rice-specific" serving dish.
Maybe bowl, plate, pan, platter, whichever of those terms best matches what the rice is being served from?
Would rice be served from some sort of casserole dish?
Maybe someone else here has more experience with rice than I do, and will know a better term.