Succotash Soup with Black Pepper Croutons

Name: Succotash Soup with Black Pepper Croutons
Ingredients: 1/4 cup (1/2 stick) butter; 3 cups 1/2-inch cubes crustless sourdough bread (about 8 ounces); 1 teaspoon coarsely cracked black pepper; 2 tablespoons (1/4 stick) butter; 2 cups chopped leeks (white and pale green parts only; about 3 medium); 1/4 cup minced shallots; 3 garlic cloves, chopped; 6 tablespoons finely chopped fresh Italian parsley; 2 tablespoons chopped fresh thyme; 1 tablespoon chopped fresh oregano; 1 large red bell pepper, cut into 1/4-inch cubes; 8 cups low-salt chicken broth; 1 1/2 cups frozen baby lima beans (about 8 ounces); 1 14 3/4-ounce can creamed corn; 1 1/2 cups frozen white corn kernels (about 8 ounces)