Creating a delightful Quick Chicken Zucchini Stir Fry is straightforward when you follow these steps:

1. Prep Ingredients: Slice the chicken, zucchini, bell pepper, and onion. Mince the garlic and ginger.
2. Heat Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
3. Cook Chicken: Add the sliced chicken breast to the skillet. Season with salt and pepper. Cook for 5-7 minutes until golden brown and cooked through. Remove chicken from skillet and set aside.
4. Sauté Vegetables: In the same skillet, add the bell pepper, onion, garlic, and ginger. Stir-fry for about 2-3 minutes until they start to soften.
5. Add Zucchini: Stir in the zucchini and cook for another 2-3 minutes, maintaining a crisp texture.
6. Combine and Sauce: Return the chicken to the skillet. In a small bowl, mix soy sauce and corn starch if using. Pour the sauce over the chicken and vegetables, stirring to coat everything evenly.
7. Cook Through: Let it cook for 2-3 minutes to heat everything thoroughly and allow sauce to thicken slightly.
8. Serve: Once well combined, remove from heat. Serve hot, garnished with sesame seeds if desired.

These simple steps will guide you to prepare Quick Chicken Zucchini Stir Fry effortlessly.