Let’s break down the cooking process into simple steps:

Step 1: Cook the Pasta

1. Boil Water: In a large pot, bring salted water to a rolling boil.
2. Cook Ziti: Add the ziti pasta and cook until al dente, according to package instructions (usually about 8-10 minutes). You want it slightly undercooked, as it will continue to cook in the oven.
3. Drain and Rinse: Drain the pasta in a colander and rinse under cold water to stop the cooking process. Set aside.

Step 2: Prepare the Cheese Mixture

1. Mix Ricotta: In a large mixing bowl, combine the ricotta cheese, egg, 1 cup of mozzarella, ½ cup of provolone, and ½ cup of Parmesan.
2. Season: Add salt and pepper to taste, mixing until everything is well combined. This mixture will be rich and creamy, perfect for layering with the pasta.

Step 3: Combine the Pasta and Marinara

1. Mix Pasta with Sauce: In a large bowl, combine the cooked ziti and marinara sauce. Toss until the pasta is well coated.
2. Add Cheese Mixture: Gently fold in the ricotta mixture, ensuring the pasta is evenly coated. It’s okay if some cheese mixture remains on top; it will melt beautifully in the oven.

Step 4: Layer the Dish

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Grease Baking Dish: Lightly grease a 9×13 inch baking dish with olive oil.
3. Layer Pasta: Pour half of the ziti mixture into the prepared baking dish, spreading it out evenly.
4. Add Cheeses: Sprinkle half of the remaining mozzarella, provolone, and Parmesan on top.
5. Top with Remaining Pasta: Add the rest of the ziti mixture, spreading it out again.
6. Finish with Cheese: Top with the remaining mozzarella, provolone, and Parmesan, ensuring every inch is covered.

Step 5: Bake the Ziti

1. Cover and Bake: Cover the baking dish with aluminum foil (to prevent sticking, spray the foil with cooking spray) and bake in the preheated oven for 30 minutes.
2. Uncover and Brown: Remove the foil and bake for an additional 10-15 minutes, or until the cheese is bubbly and golden brown.

Step 6: Let it Rest and Serve

1. Rest: Once baked, remove the dish from the oven and let it rest for about 10 minutes. This helps the layers set and makes serving easier.
2. Garnish: Sprinkle freshly chopped parsley over the top for a pop of color and flavor before serving.