
Place a sauté pan over medium heat and once the pan it hot, add some cooking oil to lightly coat the bottom. Add the minced shallot (or garlic) and sauté briefly until fragrant.
Add the tomato wedges and the white parts of scallions to the pan. Stir and cook for a couple of minutes or until the tomatoes start to soften and release juice.
Add the cabbage and the salt, give everything in the pan a stir thoroughly. Add the water, then cover the pan and cook for about 3 minutes or until the cabbage becomes tender yet still slightly crisp.
Stir in the soy sauce if using. Taste and adjust the seasonings to your liking and adjust cooking time to your desired texture.
Finally, add the green parts of scallions and toss well. Sprinkle with plenty of black pepper and serve right away.