Creating Garlic Chicken Stir Fry is straightforward if you follow these outlined steps:

1. Marinate Chicken: In a bowl, combine sliced chicken breast with 2 tablespoons of soy sauce. Allow it to marinate for at least 10 minutes to absorb the flavors.
2. Prepare Vegetables: While the chicken marinates, wash and slice all vegetables – bell pepper, broccoli, snap peas, and carrot.
3. Heat the Pan: In a large skillet or wok, heat 2 tablespoons of vegetable oil over medium-high heat.
4. Cook Chicken: Add the marinated chicken to the pan in a single layer. Cook for about 5-7 minutes until it is browned and cooked through. Remove from the pan and set aside.
5. Sauté Garlic: In the same pan, add a little more oil if needed, and sauté minced garlic for about 30 seconds until fragrant.
6. Add Vegetables: Toss in the bell pepper, broccoli, snap peas, and carrot. Stir-fry for 3-5 minutes until they are tender-crisp.
7. Combine: Return the cooked chicken to the pan with the vegetables.
8. Add Sauce: Pour in the remaining 2 tablespoons of soy sauce and sesame oil (if using). Stir to combine and heat through.
9. Thicken (Optional): If a thicker sauce is desired, dissolve cornstarch in a bit of water and add it to the stir-fry, stirring continuously until the sauce thickens.
10. Season: Taste and adjust seasoning with salt and pepper if needed.
11. Garnish: Top with chopped green onions right before serving.
12. Serve: Serve hot over cooked rice or noodles.

These simple steps lead to a delightful dish bursting with flavor and nutrition!