Preheat over to 425F

Bake pastry shell until lightly browned, let cool

Reduce heat to 375 F

Crumble sausage in a large skillet, add onion and cook over medium heat until sausage is brown and onion is tender. Drain off pan drippings.

Add apple, lemon juice, sugar and red pepper flakes to skillet.  Cook stirring constantly until the apple is just tender and all liquid has evaporated.  Let cool.

Spoon mixture into the pastry shell.  Top with cheese.  Wisk eggs, half & half, salt and a dash of pepper in medium bowl.  Pour over the misture.  Do mot stir.

Bake 35-45 minutes or until filling is puffed.

Let stand for 10 minutes.