In a large bowl, mix together tghe ground chicken, mushrooms and carrot. Set aside.
Prepare first sauce by mixing together 1 tablespoon hoisen sauce, 1 tablespoon teriyaki sauce, 1 tablespoon soy sauce, garlic, red pepper, and 1/2 teaspoon ginger powder. Pour marinade over the ground chicken and mix well until thoroughly combined.
In a large skillet, heat sesame oil over medium-high heat. Add chicken mixture to to pan and saute, stirring occasionally, for about 8-10 minutes, until chicken is almost cooked.
Meanwhile, while chicken is cooking, prepare the second sauce. In a bowl combine 2 tablespoons hoisen sauce, 2 tablespons teiryaki sauce, 1/2 teaspoon ginger powder, and 1 teaspoon cornstarch.
Add green onion to the chicken. Pour sauce over the chicken mixture and allow to simmer a few additional minutes.
Depending on the size of your lettuce wraps, place a spoonful or two of brown rice in each lettuce wrap and top with a spoonful or two of chicken.
Enjoy!