Cut the soft tofu into bite-sized pieces.
Slice the green onion, onion, and spicy green chili.
Heat cooking oil in a pan and stir-fry the green onion to make fragrant oil.
Add the onion, chili, and minced garlic, and stir-fry together.
Add chili powder and soy sauce, then stir-fry.
Pour in water and bring to a boil, then add the soft tofu.
Season with salt or soup soy sauce to taste.
Simmer a bit more, then spoon the soft tofu stew over rice to finish.