Cut the pork into bite-sized pieces.
Julienne the onion and carrot.
Add cooking oil to a pan and stir-fry the pork.
Once the pork is almost cooked, add the onion and carrot and stir-fry together.
Season with soy sauce, sugar, and mirin.
When the vegetables and meat are fully cooked, place them over rice.
Garnish with green onion and sesame seeds to finish.