In a medium bowl, combine soy sauce, peanut butter, sesame oil, honey, rice vinegar, ginger and red pepper flakes. Whisk well and set aside.
Preheat large skillet on medium-high heat, swirl oil to coat and add ground turkey and mushrooms. Saute until cooked through for about 10 minutes, constantly breaking into small pieces with spatula and stirring occasionally.
Add garlic, green onion and previously whisked sauce. Saute for another 2 minutes, stirring occasionally. Turn off heat.
Scoop 1/4 - 1/3 cup warm Filling into each lettuce shell, top with bean sprouts, carrots, peanuts and green onions and enjoy immediately.
Video
Notes
Store: Refrigerate filling in an airtight container for up to 3 days. Reheat in a microwave or on a skillet before assembling the lettuce wraps.
Freeze: Freeze in an airtight container for up to 3 months. Then, allow it to thaw in the fridge overnight before reheating.