Occasionally, the dish is called unaju when broiled eel and boiled rice are served in a double layer ("ju 'pile-up'", in such an alternate order from the bottom, as rice-eel-rice-eel).
また、鰻と御飯が二重になっている物をそう呼ぶ事がある(器の底から「御飯-鰻-御飯-鰻と「重」ねる意味から)。