Cut cabbage, onion, tomato, bell pepper, celery, and carrot into bite-sized pieces.
Heat a small amount of olive oil in a large pot and sauté the onions.
Add the remaining vegetables to the pot and stir-fry for 2 minutes.
Pour in chicken stock or water and bring to a boil.
Add tomato sauce and simmer over medium heat for 20 minutes.
Season with salt, pepper, and other spices to taste.