Slow-Cooker Minestrone

Ingredients

• 1 carton (32 ounces) vegetable or chicken stock
• 3 cups V8 or tomato juice
• 2 cups water
• 2 medium potatoes, peeled and chopped
• 2 celery ribs, chopped
• 2 medium carrots, chopped
• 1 can (14-1/2 ounces) diced tomatoes, undrained
• 1 medium onion, chopped
• 3 garlic cloves, minced
• 2 bay leaves
• 1 tablespoon Italian seasoning
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 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