1 can (16 ounces) kidney beans, rinsed and drained
1 can (15 ounces) cannellini beans, rinsed and drained
1 can (14-1/2 ounces) cut green beans, drained
1 small zucchini, chopped
1 cup uncooked ditalini or other small pasta
Grated Parmesan cheese, optional
Combine the first 13 ingredients in a 5- or 6-qt. slow cooker. Cook, covered, on low until vegetables are tender, 6-8 hours. Stir in remaining ingredients. Cook, covered, on high until pasta is tender, about 30 minutes longer. Discard bay leaves. If desired, top with grated Parmesan cheese. Freeze option: Freeze cooled soup in freezer containers. To use, partially thaw in refrigerator overnight. Heat through in a saucepan, stirring occasionally; add water if necessary.