Heat oil in a wok over high heat; stir fry capsicum, zucchini, onion, carrot, mushrooms and and garlic for 3-4 minutes; until all vegetables are coated in oil and glistening.
Add pineapple chunks, bok choy and parsley; stir fry a further 3 minutes.
Add sweet and sour sauce; stir through until vegetables are thoroughly coated; stir fry further 2 minutes and serve hot.