For pie crust, preheat oven to 400 degrees. Combine flour and salt. Cut butter into flour until all butter is in pea-sized balls. Add water and knead into a ball. Cover with plastic and refrigerate 1 hour. Roll out dough on a floured surface until 1/8 inch thick. Place in pie pan, removing excess dough on edges. Prick pie crust all over with a fork to vent. Bake at 400 degrees for 12 minutes. Set aside.
For quiche filling, whisk eggs, cream, shallots, French Bouquet Garni, and Piment d’Espellette salt until smooth. In prepared pie crust, place bacon, cheese and spinach in bottom of pan. Fill with egg mixture, making sure spinach is submerged. Bake for 60-70 minutes or until filling is set and slightly browned.