Place all ingredients in a slow cooker and cook on high (if you'll be home to watch it) for 6-8 hours. Or cook on low for 8-10 if you won't be home to watch it.
If the soup has thickened too much, add 1 cup of water and stir to combine. Continue adding water, 1 cup at a time until you get the consistency you want. Just keep in mind that this is meant to be a thicker soup.
Note: Slow cookers will vary. Adjust cooking times accordingly. Soup is finished when beans are cooked.
Notes
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.