Ribollita, Slow-Cooker Style
RIBOLLITA, SLOW-COOKER STYLE4 medium carrots, rough chop4 celery stalks, rough chop3 c. sliced green cabbage6 oz. pancetta, diced1 c. dried cannellini beans, picked over and rinsed¼ c. tomato paste½ c. grated parmesan cheese, plus 2” piece of the rindSalt, black…