Pizza Rustica

Ingredients

• 6 cups all-purpose flour, plus more as needed
• 1/4 teaspoon salt
• 1 pound chilled salted butter, cut into large pieces
• 5 large eggs, beaten
• 12 ounces prosciutto, in 1/4-inch dice
• 8 ounces boiled ham, in 1/4-inch dice
• 8 ounces pepperoni, in 1/4-inch dice
• 8 ounces soppressata, in 1/4-inch dice
• 8 ounces mozzarella, in 1/4-inch dice
• 8 ounces provolone, in 1/4-inch dice
• 2 pounds ricotta
• 4 ounces grated pecorino Romano
• 10 large eggs, beaten
• 1 teaspoon pepper
• 1 large egg, beaten, for brushing crust