01 - Toss chicken pieces with cornstarch, salt, and black pepper in a medium bowl until evenly coated.
02 - Heat vegetable oil in a large skillet or wok over medium-high heat. Add chicken and cook for 5–7 minutes, turning occasionally, until golden brown and cooked through. Remove chicken and set aside.
03 - Add garlic, ginger, and bell peppers to the same pan. Sauté for 2–3 minutes until fragrant and slightly softened.
04 - Whisk together soy sauce, honey, rice vinegar, sriracha, chili garlic sauce, tomato paste, and sesame oil in a separate bowl.
05 - Return cooked chicken to the pan. Pour sauce over chicken and vegetables. Stir well to coat everything evenly.
06 - Cook for another 2–3 minutes, allowing sauce to thicken and glaze the chicken.
07 - Remove from heat. Garnish with sesame seeds and sliced green onions if desired. Serve hot with steamed rice.