In large saucepan over medium-high heat, bring broth to boil. Add cannellini beans, zucchini, yellow squash, green beans, corn, onion, ½ teaspoon salt, and ¼ teaspoon pepper. Simmer until the vegetables are tender, 8 to 10 minutes. Stir in dill or cilntro or pesto and drizzle with olive oil. Serve or pack in a thermos for a great lunch on the go.