Bring a large pot of salted water to a boil. Add 1 pound of ziti pasta and cook until al dente, about 8 to 10 minutes. Drain the pasta and set aside. Toss the hot pasta with a drizzle of olive oil to prevent sticking while you prepare the sauce.
In a mixing bowl, combine 2 cups of shredded cooked chicken with 1 cup of buffalo wing sauce. Toss well until the chicken is evenly coated. Set aside to let the flavors meld.
Heat 1 tablespoon of olive oil in a large skillet over medium heat. Add 2 cloves of minced garlic and sauté until fragrant, about 1 minute. Pour in 1 cup of heavy cream and stir to combine. Add 1/2 teaspoon each of onion powder, garlic powder, and Italian seasoning. Let the cream mixture simmer gently for 3 to 4 minutes, stirring occasionally, until slightly thickened.
Lower the heat and stir in 2 cups of shredded mozzarella cheese and 1 cup of grated Parmesan cheese. Continue stirring until the cheeses melt smoothly into the sauce. Season with salt and pepper to taste.
Preheat your oven to 375°F (190°C). In a large mixing bowl or directly in your baking dish, combine the cooked ziti, buffalo chicken, and creamy Alfredo sauce. Stir gently to coat the pasta evenly.
Transfer the mixture to a 9x13-inch baking dish if not already there. Sprinkle a little extra mozzarella on top if desired for a golden finish. Bake uncovered in the preheated oven for 20 to 25 minutes, until the cheese is bubbly and lightly browned.
Remove from the oven and let it rest for 5 minutes. Garnish with chopped green onions for a fresh pop of color and flavor. Serve warm and enjoy the perfect blend of spicy, creamy, and cheesy goodness.