Place the oil to a large frying pan. Add pork, carrots, onions, and peppers. Cook over a medium flame until the pork is cooked through.
While the pork and veggies are cooking, add the juice from the pineapple to a small pot. Stir in ketchup, honey, vinegar, Worcestershire sauce and spices. Stir until thoroughly combined.
Use a whisk to blend the cornstarch into the sweet and sour mixture.
Cook over a medium flame until it reaches a boil. Lower flame and simmer until the sauce thickens.
Once the pork is cooked through, add the pineapple chunks and sweet and sour sauce. Cook over a medium flame until the pineapple is heated through.