Brown ground turkey with chopped onion. Drain off excess liquid.
In large Crock-Pot combine cooked turkey and onion with celery, 0.5 cup hoisin sauce, soy sauce, water, garlic, ginger, brown sugar, sesame oil, chili oil, bamboo shoots and water chestnuts. Cover and cook on low for 6 hours.
Before serving, mix in a can of bean sprouts and cilantro. Serve by scooping a spoonful in the lettuce, drizzle with the leftover 0.25 cup of hoisin sauce. Enjoy!
Notes
Serve immediately and enjoy the delicious homemade lettuce wraps!