Wash vegetables such as onions, carrots, celery, and tomatoes thoroughly and chop them into appropriate sizes.
Add olive oil to a pot and sauté the onions, carrots, and celery.
When the vegetables turn translucent, add tomatoes, cabbage, green onions, and bell peppers, and stir-fry together.
Pour in water and add bay leaves, salt, and pepper. Bring to a boil.
Once it starts boiling, reduce to medium heat and simmer for 20–30 minutes.
Remove the bay leaves, taste, and adjust the seasonings as needed.
Serve the finished soup in a bowl.