Select Sauté on Normal/Medium on the Instant Pot® and heat the oil. Add the pork and cook, crumbling well, until browned, about 10 minutes.
Add in the Hoisin sauce and stir to coat the pork, then add the onion and cook until tender, about 5 minutes. Add garlic, soy sauce, Chinese five-spice, and pepper and cook until fragrant, about 1 minute.
Add the chicken broth and coleslaw mix to the pot and stir well. Press the Cancel button, close the lid, set steam release to Sealing, press the Manual button, and set time to 8 minutes.
When the timer beeps, quick-release the pressure.
Serve hot with wonton strips and scallions for garnish. Enjoy!