This healthy slow-cooker pinto bean stew recipe is bursting with veggies--onion, bell pepper, celery and corn--and topped with crunchy bits of radish and chile-and lime-flecked cornbread dumplings. If you're pressed for time, skip the dumplings and serve this pinto bean stew straight out of the crock pot, topped with crushed tortilla chips and a sprinkling of monterey jack cheese. Make sure to soak your dried beans before using them in the slow cooker to ensure even cooking.