1. Fried bacon with yam: Slice yam, dice bacon, stir-fry shallots, ginger and garlic, add yam and bacon, and stir-fry until yam becomes soft.

2. Stir-fried tofu with yam: Slice yam, dice tofu, stir-fry leek, ginger and garlic, add yam and tofu, and stir-fry until yam becomes soft.

3. Stir-fried eggs with yam: Slice yam, break the eggs, add onion, ginger and garlic and stir fry, add yam and eggs and stir fry until yam becomes soft.

4. Stir-fry celery with yam: slice yam, dice celery, stir-fry leek, ginger and garlic, add yam and celery, and stir-fry until yam becomes soft.