In a casserole, combine the cabbage; chopped, pakchoi cabbage; sliced, green beans, sliced into two pieces (if too long), plantains; sliced into two pieces and tofu; cubed. Fill with water and boil in a few minutes until vegetables are cooked.
While boiling, In a wok, fry the garlic together with the onion for 1 minute.
Add the tomato sauce, salt and water then bring to a boil
Add the sliced boiled vegetables and simmer for 5 minutes.