This is a delicious pot of garden vegetables. If you want to add protein you can include a can of drained beans of your choice or a cup or 2 of cooked chicken.
Saute onions in olive oil for 2-3 minutes. Add in garlic and saute an additional minute. Mix in celery and bell pepper. Continue to saute for 2-3 minutes.
Add in broth. Stir in all the remaining vegetables except the zucchini and kale. Blend in the seasonings and simmer the soup until the potatoes are tender, approximately 1 hour. Add in the zucchini and kale and cook for 5 minutes. Adjust seasoning and serve.