Pf Changs Asian Chicken Lettuce Wraps

2 tsp canola oil 8 oz white mushrooms, chopped 1 lb lean ground chicken 1 clove garlic, minced 1/2 tsp fresh ginger, minced 1 cup green onions, sliced 1 (8 oz) can sliced water chestnuts, drained and chopped 8 large lettuce leaves 1 tbsp toasted sesame oil 1/2 tbsp rice wine vinegar 3/4 tsp lower-sodium soy sauce 1/2 tsp honey crushed red pepper flakes, to taste DIRECTIONS: Heat canola oil in large nonstick skillet over medium heat. Add mushrooms and cook for 5 minutes or until tender, stirring occasionally. Place mushrooms in a large bowl,