Marinade:

1/3 cup ketchup

1/3 cup packed dark brown sugar

1/3 cup low-sodium soy sauce

1/4 cup pineapple juice (from canned)

4 tbsp olive oil, divided

1 1/2 tbsp rice vinegar

4 garlic cloves, minced

1 tbsp minced ginger

1/2 tsp sesame oil

Salt and freshly ground black pepper

Kebabs:

1 3/4 lb boneless, skinless chicken breast, cubed (1 1/4-inch pieces)

3 cups fresh pineapple cubes (from about 3/4 of a 3 lb pineapple)

1 1/2 large green bell peppers, cubed

1 large red onion, cubed