Acorn Squash Casserole

Ingredients

• ¾ cup whole milk
• 2 acorn squash , halved and seeded
• 2 large eggs, lightly beaten
• 1 tablespoon finely chopped shallot
• 1 teaspoon minced garlic
• ¾ teaspoon salt, divided
• 1 tablespoon chopped fresh sage
• 2 tablespoons chopped fresh flat-leaf parsley
• 666 cup finely grated Parmesan cheese, divided
• 1 tablespoon chopped fresh rosemary
• 1 ½ cups fresh whole-wheat sourdough breadcrumbs
• ½ teaspoon ground pepper, divided
• 2 tablespoons extra-virgin olive oil
• 2 tablespoons unsalted butter, melted