Preheat your oven to 375°F (190°C). If using a store-bought crust, fit it into a 9-inch pie pan. For a homemade crust, roll out the dough and press it into the pan. Crimp the edges for a decorative finish.

In a skillet over medium heat, cook 8 slices of chopped bacon until crispy and golden brown. Transfer the cooked bacon to a paper towel-lined plate to remove excess grease.

Sprinkle half of the shredded cheddar cheese evenly over the bottom of the crust. Spread the crispy bacon over the cheese layer. In a bowl, whisk together eggs, heavy cream, whole milk, salt, pepper, and ground nutmeg until smooth. Carefully pour the mixture over the cheese and bacon layers. Sprinkle the remaining shredded cheddar cheese on top and garnish with chopped parsley, if desired.

Place the quiche in the preheated oven and bake for 35-40 minutes, until the top is golden, the center is set and it reaches 160°F. A knife inserted in the center should come out clean.

Let the quiche cool slightly for about 5-10 minutes before slicing. Serve warm, paired with a fresh green salad or fruit for a complete meal.