Acorn Squash Casserole

Name: Acorn Squash Casserole
Ingredients: 2 acorn squash (about 1 1/2 pounds each), halved and seeded; 2 tablespoons extra-virgin olive oil; ¾ cup whole milk; 2 large eggs, lightly beaten; 1 tablespoon finely chopped shallot; 1 teaspoon minced garlic; ⅔ cup finely grated Parmesan cheese, divided; ¾ teaspoon salt, divided; ½ teaspoon ground pepper, divided; 1 ½ cups fresh whole-wheat sourdough breadcrumbs (see Tip); 2 tablespoons unsalted butter, melted; 2 tablespoons chopped fresh flat-leaf parsley; 1 tablespoon chopped fresh sage; 1 tablespoon chopped fresh rosemary