Heat sesame oil in a large skillet over medium-high heat. Add ground pork and cook until browned, breaking it up with a spoon, about 5-6 minutes.
Toss in diced onion, garlic, and ginger. Sauté for 2 minutes until fragrant.
Stir in the coleslaw mix. Sauté for 5-6 minutes, stirring often, until the veggies soften but still have a little crunch.
Pour in soy sauce, rice vinegar, and sriracha. Stir well and cook for another 2 minutes.
Remove from heat. Sprinkle with green onions and sesame seeds. Serve hot!