1 tablespoon vegetable oil
1 large onion, chopped
2 large stalks celery, chopped
2 1/2 teaspoons Italian seasoning
salt and pepper to taste
1 (28 ounce) can Italian-style diced tomatoes
5 cups vegetable broth
2 large sweet potatoes, peeled and diced
2 large carrots, sliced thin
6 ounces green beans, cut into 1 inch pieces
5 cloves garlic, minced