I don't eat beef burgers, but MC does, and last year, he gave Lotteria's rice bulgogi burger a generous 5/10 rating. I managed to take a bite of the rice "bun," and you know what, it wasn't half bad. I bet this thing would sell pretty well in Hawaii, home of McDonald's Portuguese sausage, eggs, and rice breakfast!
PS. Is it just me or does the burger wrapper seem a little... inappropriately amusing?