01 -
Place pinto beans, onion, jalapeños, garlic, diced tomatoes with juice, broth, and water into a 6-quart slow cooker.
02 -
Cover and cook on low setting for 8 to 10 hours or on high for 4 to 5 hours, until beans are soft and cooked through.
03 -
Drain most of the cooking liquid into a separate bowl, reserving it for later use.
04 -
Use an immersion blender or potato masher to mash the beans in the slow cooker until a smooth consistency is reached, adding reserved cooking liquid as needed.
05 -
Taste and adjust seasoning by stirring in taco seasoning and salt as necessary. Blend or mash once more to combine.
06 -
Serve the refried beans warm as a side, stuffed in tacos, or as a topping for tostadas.