Orecchiette And Chickpea Soup

Name: Orecchiette And Chickpea Soup
Ingredients: 1 tablespoon olive oil; 1/2 large onion, diced; 2 cloves garlic, minced; 5 cups low-sodium chicken or vegetable broth; 1/2 pound orecchiette pasta, or other noodle of similar size; 1 14.5-ounce can chickpeas, drained; 1/2 cup grated Parmesan cheese + more for garnish; -- Kosher salt and ground black pepper, to taste; -- Chopped parsley, for garnish (optional)