The Best Cheese Manicotti

Ingredients (12)

• 1 package (8-ounces) manicotti shells
• 2 cups ricotta cheese
• 3 cups shredded mozzarella cheese, divided
• 1 cup shredded provolone cheese
• 1/2 cup grated parmesan cheese
• 1 tablespoon dried parsley
• 2 teaspoons Italian seasoning
• 1/2 teaspoon ground black pepper
• 2 cups frozen chopped spinach, thawed and squeezed dry
• 1 egg, whisked
• 4 cups marinara sauce, divided
• chopped basil or parsley for garnish, optional