Asian Chicken with cornstarch

1 tablespoon cornstarch 4 tablespoons soy sauce low sodium 1 tablespoon peanut oil or vegetable oil 1 each onion finely diced 1 each sweet red bell pepper[...]

4 each chicken breast halves, boneless and skinless 1/2 teaspoon chinese black vinegar * 1 head broccoli florets * 1/2 pound water chestnuts 1 large carrot 1[...]