Stir-fried sweet and sour chicken is a quick and easy dish that is packed with flavor. The chicken is stir-fried with colorful vegetables like bell peppers, onions, and pineapple chunks, then coated in a tangy sauce made with vinegar, ketchup, and soy sauce. Serve it over steamed rice or noodles for a satisfying and healthy meal. This dish is a great way to incorporate more vegetables into your diet while still enjoying the classic flavors of Hong Kong-style sweet and sour chicken.