Quiche recipe

#### Ingredients: - 1 pie crust (store-bought or homemade) - 6 slices bacon, chopped - 1 cup shredded Gruyere cheese - 1/2 cup chopped onion - 1 1/2 cups half-and-half cream - 4 large eggs - 1/4 teaspoon salt - 1/4 teaspoon ground black pepper - 1/4 teaspoon ground nutmeg (optional) - Fresh chives, chopped (for garnish)