Heat oil in a large skillet over medium-high heat.
Add pork. Cook, breaking into crumbles, until browned, 5–6 minutes. Drain excess fat if needed.
Stir in garlic and ginger. Cook until fragrant, about 30 seconds.
Add coleslaw mix. Toss and cook until tender-crisp, 3–4 minutes.
Pour in soy sauce, rice vinegar, and sriracha. Stir to coat evenly.
Drizzle in sesame oil. Season with pepper and a pinch of salt.
Fold in green onions. Sprinkle sesame seeds and serve hot.