This is the recipe, but I never use the exact amounts with any recipe. I use what I have available. For this I had less beans and tomatoes so I upped the amount of rice, added some canned carrots and just watched closely.
(makes 6 servings)
When soup has reached the consistency you want, turn Crockpot to high if you were cooking on low. Add 1/4 cup rice and cook until rice is done, about 30 minutes.
Add kale or cilantro and cook 5 minutes more. Serve hot!