Step 1: Cook the Ziti Pasta

1. Bring a large pot of salted water to a rolling boil.
2. Add the ziti pasta and cook according to package directions for al dente, about 8-10 minutes. Do not overcook the pasta, as it will continue to cook in the oven. Al dente pasta will hold its shape better in the baked dish.
3. Drain the pasta well and set aside. You can lightly rinse the pasta with cold water to stop the cooking process, but it’s not strictly necessary.

Step 2: Prepare the Meat Sauce (If Using Meat)

1. Heat olive oil in a large skillet or Dutch oven over medium heat.
2. Add the chopped onion and cook until softened and translucent, about 5-7 minutes. Stir occasionally to prevent burning.
3. Add the minced garlic and cook for another minute, stirring constantly, until fragrant.
4. If using ground meat, add it to the skillet and cook, breaking it up with a spoon, until browned. Drain off any excess grease.
5. Pour in the red wine (if using) and scrape the bottom of the skillet to deglaze, lifting up any browned bits. Cook for 1-2 minutes, allowing the wine to reduce slightly.
6. Add the crushed tomatoes, tomato paste, dried oregano, dried basil, red pepper flakes (if using), salt, and black pepper to the skillet.
7. Stir well to combine all ingredients.
8. Bring the sauce to a simmer, then reduce the heat to low, cover, and simmer for at least 20-30 minutes, or up to an hour, stirring occasionally. Simmering the sauce allows the flavors to meld and deepen. The longer you simmer, the richer the flavor will become.

Step 3: Prepare the Ricotta Cheese Mixture

1. In a medium bowl, combine the ricotta cheese, egg, and grated Parmesan cheese.
2. Season with a pinch of salt and black pepper.
3. Stir well to combine until smooth and creamy. Set aside.

Step 4: Assemble the Baked Ziti

1. Preheat oven to 375°F (190°C).
2. Lightly grease a 9×13 inch baking dish with olive oil or cooking spray.
3. Spread a thin layer of the meat sauce (or tomato sauce if vegetarian) in the bottom of the baking dish.
4. Add half of the cooked ziti pasta to the baking dish, spreading it evenly over the sauce.
5. Spoon half of the ricotta cheese mixture over the pasta, dolloping it evenly.
6. Top with half of the sliced fresh mozzarella cheese.
7. Spoon half of the remaining meat sauce (or tomato sauce) over the mozzarella cheese.
8. Repeat layers: remaining ziti pasta, remaining ricotta cheese mixture, remaining mozzarella cheese, and finally top with the remaining meat sauce (or tomato sauce).
9. Sprinkle the top generously with additional grated Parmesan cheese.

Step 5: Bake the Ziti

1. Cover the baking dish tightly with aluminum foil.
2. Bake in the preheated oven for 20 minutes, covered. This allows the dish to heat through and the cheeses to melt.
3. Remove the foil and bake for another 20-25 minutes, or until the cheese is melted, bubbly, and lightly golden brown, and the sauce is bubbling around the edges.
4. If you want the top to be more browned, you can broil for the last 1-2 minutes, watching carefully to prevent burning.

Step 6: Rest and Serve

1. Let the Baked Ziti rest for 10-15 minutes before serving. This allows the cheese to set slightly and makes it easier to slice and serve.
2. Garnish with chopped fresh parsley (if desired).
3. Serve hot and enjoy!