Sautee onion and garlic in a little oil, add peppers and carrots and celery. Once vegetables are soft. Add tomatoes and water or broth and rest of ingredients.
2. Bring mixture to a boil and then cover, lower temperature and simmer for 1-2 hours until cooked through, adjust seasoning to taste.
Serve with sliced avocado and even cheese if desired.
Note: you can also make this in a slow cooker - Combine all ingredients in a slow cooker. Stir well to combine.
Cover and cook on low for 4 hours or low for 6 hours. Serve warm.