Creating your Five-Cheese Ziti al Forno can be straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).

2. Cook the Ziti: In a large pot of boiling salted water, cook the ziti until al dente, according to package instructions. Drain and set aside.

3. Sauté the Aromatics: In a large skillet, heat olive oil over medium heat. Add the chopped onion and minced garlic, sautéing until softened.

4. Brown the Meat (Optional): If using ground beef or Italian sausage, add it to the skillet and cook until browned, breaking it into small pieces as it cooks. Drain excess fat if necessary.

5. Mix the Sauce: Stir in the marinara sauce, Italian seasoning, salt, and pepper. Allow it to simmer for about 5 minutes for flavors to meld.

6. Combine Ingredients: In a large bowl, combine the cooked ziti, the meat and sauce mixture, ricotta cheese, and half of the mozzarella and provolone. Mix well to combine.

7. Assemble the Ziti: In a greased baking dish, layer half of the ziti mixture. Sprinkle the crumbled feta cheese on top, then layer the remaining ziti. Top with the remaining mozzarella and provolone.

8. Bake: Cover the baking dish with aluminum foil. Bake in the preheated oven for 30 minutes. Then, remove the foil and bake for an additional 10-15 minutes, or until the cheese is golden and bubbly.

9. Rest: Once baked, remove the dish from the oven and let it rest for 10-15 minutes.

10. Garnish: Before serving, garnish with fresh basil or parsley if desired.