Rinse 2 cups of Bob's Red Mill 13 Bean Soup Mix, then soak overnight in water to cover.
The next day, drain and rinse the beans.
In a soup pot, heat oil over medium heat. Add onion, garlic and herbs and spices and sauté until onion is soft, about 5 minutes.
Add the beans to the soup pot with 2 ½ quarts of water and ham hock; bring to a boil.
Reduce heat and simmer until beans are soft and soup has thickened, 3–3 ½ hours. Remove ham hock from the soup and shred the meat. Return meat to the soup.
Add tomato paste, tomato sauce or tomatoes, and kale. Simmer for 20 minutes.