Follow these straightforward steps to create your delicious Sweet Chili Chicken:

1. Prep Chicken: Cut the chicken breasts into bite-sized pieces. Season them with salt and pepper.
2. Heat Oil: In a large skillet, heat olive oil over medium-high heat.
3. Cook Chicken: Add the chicken pieces to the skillet. Cook until browned and cooked through, about 5-7 minutes.
4. Add Garlic: Add the minced garlic to the skillet and sauté for 1 minute until fragrant.
5. Sauté Vegetables: Add the sliced red and green bell peppers and onion. Stir-fry for about 3-4 minutes until vegetables are tender.
6. Incorporate Sauce: Pour in the sweet chili sauce and soy sauce. Stir to coat the chicken and vegetables evenly.
7. Simmer: Allow the mixture to simmer for about 2-3 minutes to let the flavors meld.
8. Garnish: Remove from heat and garnish with sesame seeds and chopped green onions if desired.
9. Serve Hot: Serve your Sweet Chili Chicken hot over rice or noodles for a delicious meal.

Following these simple instructions will yield a delectable dish that is sure to be a favorite!