Ingredients

• 1 medium onion, chopped
• 2 medium carrots, chopped
• 2 stalks celery, chopped
• 12 ounces fresh green beans, cut into ½-inch pieces
• 4 cups chopped kale
• 2 medium zucchini, chopped
• 4 roma tomatoes, seeded and chopped
• 2 cloves garlic, minced
• 2 (15 ounce) cans no-salt-added cannellini or other white beans, rinsed
• 4 cups low-sodium chicken broth or low-sodium vegetable broth
• 1 parmesan rind (optional)
• 2 teaspoons salt
• ½ teaspoon ground pepper
• 2 teaspoons red-wine vinegar
• 8 teaspoons prepared pesto