In a medium-sized bowl, whisk together half of the soy sauce, half of the vinegar, orange peel, orange juice, and coconut sugar. Add the chicken and toss to coat. Place in the fridge to marinate for 30 minutes.
Add olive oil to a skillet and heat to medium-low. Add the garlic and ginger and cook for 30 seconds, just until the garlic is golden and fragrant, but not burnt.
Add the marinated chicken with any juices in the bowl and cook for 3 minutes.
Add the bell pepper strips, onions, remaining soy sauce, and vinegar, and stir. Cook for about 10 minutes until peppers have softened and chicken is cooked through.
Spoon chicken over or alongside brown rice or quinoa. Enjoy!