For the Crust:

• 1 pound store-bought pie crust (or homemade dough)

For the Filling:

• 1 15-ounce container ricotta cheese, drained
• 4 large eggs
• 1 cup shredded mozzarella cheese
• ½ cup grated Parmesan cheese
• ½ cup diced cooked ham
• ½ cup diced salami
• ½ cup diced pepperoni
• 4 ounces thinly sliced prosciutto
• ¼ cup chopped fresh parsley
• Salt and freshly ground black pepper to taste
• 1 egg (beaten (for egg wash))