Cut cabbage, onion, carrot, and celery into bite-sized pieces.
Heat olive oil in a pot and sauté onion and garlic.
Add the rest of the vegetables—cabbage, carrot, and celery—in order and stir-fry.
Add chopped tomatoes and water, then bring to a boil.
Season with pepper and herbs (such as basil and oregano).
Simmer over medium heat until all ingredients are cooked.