**Ingredients:**
- 1 pie crust (store-bought or homemade)
- 6 slices bacon, cooked and crumbled
- 1 cup shredded Gruyere cheese
- 1/2 cup chopped onion
- 4 large eggs
- 1 1/2 cups heavy cream
- Salt and pepper to taste
- 1/4 teaspoon ground nutmeg (optional)
