Omelet Rice


2D Complex.
So I come home and see this thing on my plate. I'm thinking an omelet but the stuff inside makes me think otherwise. I dig into it and find out there is rice and other goodies in the middle!!! So have you had this delicacy? I find it tasty, but the question is does anyone know where it was originated from?
I've made rice omlets before. They're really good but a lot of trouble to make.

Sadly, I have idea where it originated.