Marinate Chicken: Place marinade ingredients in a bowl and mix well. Add ground chicken and stir to combine. Set aside.

Sauce: Combine all of the sauce ingredients and mix until smooth.

Cook chicken: Heat 1 Tbsp. of olive oil in a large skillet or wok. Add the chicken mixture and stir fry 2-3 minutes.

Add veggies: Push the chicken to the side of the pan and add the bell pepper, ginger, green onions, and water chestnuts. Stir fry 1-2 minutes.

Add sauce and cook over medium heat, stirring as needed, until thickened.

Serve in lettuce cups, topped with sriracha hot sauce, if desired.