Arugula and Bacon Quiche

Name: Arugula and Bacon Quiche
Ingredients: 1 1/2 cups all purpose flour; 1/2 teaspoon salt; 6 tablespoons (3/4 stick) chilled unsalted butter, cut into 1/2-inch pieces; 3 tablespoons chilled solid vegetable shortening, cut into small pieces; 4 tablespoons (about) ice water; 6 bacon slices, cut into 1/2-inch pieces; 1/2 cup chopped shallots; 8 ounces arugula, stems trimmed, leaves coarsely chopped (about 5 1/2 cups); 2 teaspoons balsamic vinegar; 1 cup whipping cream; 3 large eggs; 1/4 teaspoon ground black pepper; 3/4 cup shredded Gruyère cheese (about 2 1/2 ounces)