Wash the soft tofu, tomato, and cabbage thoroughly, then cut into bite-sized pieces.
Heat olive oil in a pot and sauté chopped garlic.
Add tomato and cabbage, and stir-fry lightly.
Pour in water or vegetable broth and bring to a boil.
Add the soft tofu and simmer for about 5 minutes.
Season with salt and pepper.
Serve in a bowl.