Just put everything in and boil it.
Chop vegetables such as onion, tomato, carrot, celery, and cabbage into bite-sized pieces.
Heat olive oil in a pot and sauté onion, celery, and carrot first.
Add cabbage and tomato, and continue to sauté thoroughly.
Add water and tomato paste, then bring to a boil.
Simmer gently over low heat for 20–30 minutes.
Season with salt and pepper.