Preheat your oven to 375°F (190°C).
Place the pie crust in a 9-inch pie dish and prick the bottom with a fork.
In a large mixing bowl, whisk together the eggs and heavy cream until well combined.
Stir in the shredded cheese, diced ham, green onions, salt, and pepper.
Pour the egg mixture into the prepared pie crust.
Bake in the preheated oven for 40-45 minutes, or until the center is set and the top is golden.
Remove from the oven and let it cool for 10 minutes before slicing.
Garnish with fresh herbs if desired.
Serve warm or at room temperature.
Enjoy your delicious ham and cheese quiche!