Ingredients: Pineapple chunks, bell peppers, onions, tomatoes, cucumber, garlic, chicken or tofu, soy sauce, oyster sauce, vinegar, sugar, and ketchup.

Cooking Method:
Heat oil in a wok and stir-fry garlic until fragrant. Add chicken or tofu and cook until done. Toss in onions, bell peppers, cucumber, and tomatoes, stir-frying until slightly soft. Add pineapple chunks, then season with soy sauce, oyster sauce, vinegar, sugar, and ketchup to create a sweet and tangy sauce. Stir everything together and serve hot with steamed rice.