Winter Vegetable Au Gratin Recipe

Ingredients

• 4 tablespoons butter
• 3 tablespoons all-purpose flour
• 2 cups whole milk
• 0.25 teaspoons freshly grated nutmeg
• 1 teaspoon salt
• 0.5 teaspoons ground black pepper
• 1.5 cups Gruyère cheese, shredded
• 0.5 cups Parmesan cheese, grated
• 3 medium potatoes, thinly sliced
• 0.5 small butternut squash, peeled and thinly sliced
• 2 medium parsnips, peeled and thinly sliced
• 8 ounces brussels sprouts, halved
• 1 tablespoon olive oil
• 0.5 cups breadcrumbs
• 2 tablespoons fresh parsley, chopped