Preheat Oven: Preheat your oven to 375°F (190°C).
Prepare Crust: Place the deep-dish pie crust on a baking sheet for easy transfer.
Cook Ham (Optional): For extra flavor, sauté diced ham in a skillet until slightly caramelized.
Mix Cheese Base: Combine cream cheese, shredded cheddar, and sour cream in a bowl until smooth.
Whisk Custard: In a separate bowl, whisk together heavy cream, eggs, Worcestershire sauce, hot sauce, salt, and pepper.
Assemble Quiche: Layer ham and chopped green onion in the pie crust. Spread the cheese mixture evenly over the ham, then pour the custard mixture on top.
Bake: Bake for 35–40 minutes or until the center is set and a knife inserted into it comes out clean.
Cool and Serve: Let the quiche cool for 10–15 minutes before slicing. Serve warm or at room temperature.