Step 1: Cook the Pasta

1. Bring a large pot of salted water to a boil.
2. Add ziti pasta and cook until al dente (about 8 minutes).
3. Drain and toss with a little olive oil to prevent sticking. Set aside.

Step 2: Prepare the Meat Sauce

1. Heat 2 tablespoons of olive oil in a large skillet over medium heat.
2. Add the chopped onion and sauté for 3 minutes until soft.
3. Add minced garlic and cook for 1 more minute.
4. Add ground beef and cook until browned, breaking it apart as it cooks. Drain excess grease.
5. Stir in spaghetti sauce, Italian seasoning, salt, black pepper, and red pepper flakes. Simmer for 15 minutes.

Step 3: Assemble the Baked Ziti

1. Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking dish.
2. Spread half of the cooked ziti in the dish.
3. Layer with sliced provolone cheese, then spread sour cream over the cheese.
4. Spoon half of the meat sauce over the sour cream.
5. Add the remaining ziti pasta, then sprinkle with shredded mozzarella.
6. Top with the remaining meat sauce, then finish with grated Parmesan cheese.

Step 4: Bake the Ziti

1. Cover the dish with aluminum foil and bake for 20 minutes.
2. Remove the foil and bake for another 10 minutes until the cheese is melted and golden.
3. Let the baked ziti rest for 5 minutes before serving.

Step 5: Garnish & Serve

1. Sprinkle with fresh basil or parsley before serving.
2. Serve hot with garlic bread or a fresh salad.