Finely mince the beef and pork.
Chop onion, green onion, and garlic finely.
Mix the minced meat and vegetables with soy sauce, sugar, sesame oil, and black pepper.
Shape the mixture into round, flat patties.
Heat cooking oil in a pan and cook the patties over medium-low heat until golden brown on both sides.
Place the finished patties on a plate and sprinkle with sesame seeds.