To make in an instant pot: press saute and wait until the panel shows hot. Add the sesame oil, shallot, and garlic. Saute for 10 seconds or until fragrant. Add the beef, mushrooms, and break it further to smaller pieces. Saute for another 3 minutes. Add the broth/ soy sauce mixture and star anise. Seal the instant pot lid and valve. Press manual on high for 30 minutes, then do a quick release for 10 minutes. Stir in the green onion and serve the meat mixture over rice or noodles.