Roasted Sweet Potato, Caramelized Onion, and Gorgonzola Quiche

INGREDIENTS

• Crust
• 1½ cups whole wheat pastry flour
• 2 tablespoons natural cane sugar
• ¾ teaspoon salt
• ½ cup cold butter, cubed
• ¼ cup cold water
• Filling:
• 1 large sweet potato
• 2-3 large onions
• 3 tablespoons olive oil, divided
• 1 teaspoon salt
• ½-1 cup crumbled gorgonzola cheese
• 5 eggs
• 2½ cups milk
• ½ teaspoon salt
• ½ teaspoon pepper
• pinch nutmeg