Cut cabbage, onion, carrot, and bell pepper into bite-sized pieces.
Heat olive oil in a pot and sauté the onions.
Add cabbage, carrots, and bell peppers, and stir-fry together.
Add minced garlic and sauté once more.
Pour in water and bring to a boil.
Add tomatoes, celery, and salt, then simmer over medium heat.
When the vegetables are soft, season with pepper.