Cut tofu, pork, and vegetables into bite-size pieces.
Add cooking oil to a pot and stir-fry pork, onion, and green onion.
When the meat is cooked, add chili powder and stir-fry for a bit longer.
Pour in water (or broth) and bring to a boil.
Once the soup is boiling, add soft tofu, minced garlic, salted shrimp, and salt.
Simmer over low heat for 5 more minutes.
If desired, beat in an egg and finish with spicy green peppers.