Cut the mushrooms into halves or quarters, ensuring they are evenly sized for consistent cooking. Place them in a bowl and coat with olive oil, garlic powder, soy sauce or Worcestershire sauce, salt, and pepper.
Preheat the air fryer to 380°F. Add the mushrooms to the air fryer basket and cook for 10-12 minutes, shaking the basket halfway through to ensure even cooking. Adjust the cooking time based on your desired level of doneness.
Once cooked, squeeze some lemon juice over the mushrooms if desired, and garnish with chopped parsley. Serve immediately and enjoy!