Late Summer Minestrone

Name: Late Summer Minestrone
Ingredients: 1/4 cup extra-virgin olive oil; 1 medium onion, chopped; 2 carrots, cut into 1/2-inch dice; 2 zucchini, cut into 1/2-inch dice; 1 cup fresh corn (about 2 ears); 1 cup fresh green beans, trimmed and cut into 1-inch pieces; Salt and freshly ground black pepper; 1 cup cored, chopped tomato (canned is fine; include juice); 1/2 cup chopped basil leaves, plus more for serving; Freshly grated Parmesan cheese, for serving, optional