Cut the chicken into bite-sized pieces.
Thinly slice the onion, green onion, and carrot.
Add cooking oil to a pan and stir-fry the chicken.
Add the vegetables and stir-fry together.
Pour in the Dakgalbi sauce and simmer over medium heat.
Place the stir-fried chicken Dakgalbi over rice.
Top with mozzarella cheese, cover with a lid, and let the cheese melt.