Preheat oven to 400 degrees. Let frozen pastry shell stand at room temperature 10 minutes; do not prick the pastry shell. Bake 7 minutes. Remove from oven, set aside. Reduce oven temperature to 375 degrees. In a medium skillet, cook sausage, onion and garlic over medium-high heat until sausage is done, stirring occasionally. (I use the microwave.) Drain sausage mixture, when cool, crumble. Stir in spinach and stuffing mix. Sprinkle first cheese and then sausage mixture in the pastry shell. In a medium bowl, combine eggs and cream with a fork or whisk until mixed well but not frothy. Pour egg mixture over sausage mixture in the pastry shell. Bake 30 minutes. Sprinkle with Parmesan cheese and paprika.