Cheesy Scalloped Potatoes

Ingredients (13)

• POTATOES:
• 1/4 cup (1/2 stick) unsalted butter
• 1/4 cup all purpose flour
• 3 cups 2% milk
• 10 ounces sharp cheddar cheese,
• 1/2 cup sliced green onions
• 1 teaspoon salt
• 1/4 teaspoon ground black pepper
• 4 pounds red potatoes,
• TOPPING:
• 1 1/2 cups plain breadcrumbs
• 1/4 cup (1/2 stick) unsalted butter,
• 1/4 cup freshly grated Parmesan cheese