"Es ist ein Teller mit Reis."
Übersetzung:It is a plate of rice.
In English you have to say 'it is a plate of rice', (bowl of soup, glass of wine). If you use 'with' you have to add 'on/in it' (a plate with rice on it, bowl with soup in it, glass with wine in it). The rice is most important in 'a plate of (white) rice' and the plate is most important in 'a (white) plate with rice on it'.