Heat the olive oil in a deep pot over medium heat. Add the onion and sauté until lightly browned, about 7 minutes.
Add the broth, sweet potatoes, basil, celery, 21 Seasonings Salute, salt and pepper. Bring to a boil, and simmer for 15 minutes.
Add the pasta and kale, and cook for 15 minutes or until the pasta is tender.
Season with more salt to taste.
Spoon the soup into bowls and serve warm.