The vegetables used in this soup are flexible. Any orange vegetable can be combined with green. Such as peas or green beans to replace peppers, or carrots and/or squash to replace the sweet potato.
In a soup kettle or large saucepan, saute onions garlic, celery, and sweet potatoes in olive oil for about five minutes.
Add seasonings, except tamari, and the stock/water. Simmer covered, for fifteen minutes.
Add remaining vegetables, chickpeas, and tamari.
Simmer another 10 minutes or so - until all the vegetables are as tender as you like them.