Cut the chicken into bite size pieces and place them in a gallon size plastic bag. Add the ginger salad dressing, soy sauce, and garlic. Massage the bag until combined and marinate in the fridge for a few hours or overnight.
Preheat the griddle to medium for a few minutes. Add some cooking oil and the chicken plus a small amount of kosher salt and pepper. Cook 6 to 7 minutes, mixing together with hibachi spatulas. Add the peanut sauce and cook another minute or two, mixing together.
Serve over rice if desired with chopped peanuts, lime wedges, cilantro, sriracha, and/or more peanut sauce.