Chop onion, carrot, cabbage, celery, and tomato into bite-sized pieces.
Mince the garlic.
Heat olive oil in a pot and sauté the garlic and onion.
Add the carrot, cabbage, and celery and stir-fry together.
Pour in the tomatoes and water, then bring to a boil.
Season with bay leaf, salt, and pepper.
Simmer over low heat for 20-30 minutes until the vegetables are tender.