Blend cornstarch and soy sauce in small bowl; stir in pork until well coated.

Brown pork in hot oil in Dutch oven or large skillet over medium-high heat. Stir in 1/4 cup water. Cover and simmer 20 minutes, stirring occasionally.

Stir carrots, onion, bell pepper and sweet & sour sauce into pork mixture. Simmer, covered, 10 minutes longer, stirring frequently.

Add pineapple chunks; cook and stir only until pineapple is heated through.