Italian Easter Pie

INGREDIENTS

• :
• 2½ cups all-purpose flour
• 2 tablespoons granulated sugar
• 1 teaspoon salt
• 13 tablespoons unsalted butter, cold, cut into ¼-inch cubes
• 7 tablespoons vegetable shortening, cold, cut into pieces
• 4 to 5 tablespoons ice water
• 8 ounces sweet Italian sausage
• 1 small sweet onion, finely chopped
• 4 ounces pepperoni, chopped
• 4 ounces hard salami, chopped
• 4 ounces prosciutto, chopped
• 1 pound fresh basket cheese, drained and cut into bite-size pieces
• 1 pound ricotta cheese, drained
• 4 ounces mozzarella cheese, shredded (about 1 cup)
• 4 ounces provolone cheese, shredded (about 1 cup)
• ¼ cup grated Parmesan cheese
• 3 eggs, lightly beaten with a fork
• Freshly grated black pepper
• 1 egg yolk
• 1 tablespoon heavy cream