Start by slicing the chicken breast, zucchini, red pepper, and onion. Mince the ginger and garlic to release their aromatic oils.
In a large skillet or wok, heat 1 tablespoon of olive oil over medium-high heat.
Add the sliced chicken breast to the skillet. Season with a pinch of salt and cook for about 5-6 minutes or until the chicken is cooked through and no longer pink. Remove the chicken from the pan and set aside.
In the same skillet, add the remaining ½ tablespoon of olive oil. Add the sliced onions, zucchini, and red pepper. Stir-fry for about 3-4 minutes until the vegetables are tender but still crisp.
Stir in the minced ginger and garlic, and cook for an additional minute to let the flavors bloom.
Return the cooked chicken to the skillet. Add the soy sauce (or coconut aminos), sesame oil, and rice vinegar. Toss everything together until well-coated and heated through, about 2-3 minutes.
Serve the stir-fry over a bed of cauliflower rice and garnish with sliced green onions for that extra burst of flavor.