Slice zucchini, onion, green onion, and garlic.
Add sesame oil to a pot and stir-fry the garlic.
Add pork and stir-fry.
Add chili powder and stir-fry to season.
Pour in water or broth.
Add zucchini and onion and bring to a boil.
Add soft tofu and gently stir while boiling.
Season with salt or soy sauce for soup.
Finish with green onion and egg.