2 tsp Italian seasoning (Thyme/Oregano/Rosemary/Basil)
Salt and freshly ground pepper, to taste
1 medium zucchini, chopped
Heat the olive oil in a heavy-bottomed saucepan over medium heat. Sauté the onion, carrots, celery, and garlic with one teaspoon of salt for 4-5 minutes. Add the diced sweet potatoes and cook for 6-8 minutes.
Stir in the broth, diced tomatoes with the juices, and Italian seasoning. The broth should cover about half of the saucepan; add more if necessary. Bring to a simmer, cover, and cook on low heat for 35-40 minutes, stirring occasionally. Adjust salt and pepper to taste. Stir in the zucchini and cook for 15 minutes more. Serve hot