Combine the dry (raw) beans, sliced scallions, whole garlic cloves, bay leaf, and stock or broth in the slow cooker.
Cover and cook on high for 3-4 hours or on low for 7-8 hours. When the beans are finished cooking, add fresh lime juice to taste.
Serve in tacos, bowls, and more! Store in the fridge in an airtight container for 4-5 days, or in the freezer for much longer. To reheat from frozen, thaw in the fridge and then heat on the stove or in the microwave.
These beans are incredibly flavorful, but if you want additional seasonings, trying adding a dash of cumin, chili powder, cayenne pepper, and/or garlic powder.