Creating Buffalo Chicken Mac and Cheese can be simple if you follow these steps:

1. Cook the Pasta: In a large pot, boil salted water and cook the elbow macaroni according to package instructions. Drain and set aside.
2. Prepare the Sauce: In a saucepan, melt the butter over medium heat. Add the flour and whisk until smooth, cooking for about 1 minute.
3. Add Milk: Gradually pour in the milk while whisking continuously to avoid lumps. Cook until the mixture thickens, about 3-5 minutes.
4. Incorporate Cream Cheese: Stir in the cream cheese until fully melted and combined.
5. Mix in Cheeses: Add the cheddar and mozzarella cheeses, and stir until melted and creamy.
6. Season the Sauce: Add garlic powder, onion powder, salt, and pepper. Stir well to combine.
7. Combine Chicken and Sauce: In a large bowl, mix the cooked pasta, shredded chicken, and buffalo sauce. Pour the cheese sauce over the mixture and stir until everything is evenly coated.
8. Transfer to Baking Dish: Preheat the oven to 350°F (175°C). Pour the mac and cheese mixture into a greased 9×13-inch baking dish.
9. Bake: Bake in the preheated oven for about 20 minutes until bubbly and golden on top.
10. Garnish: Remove from the oven and garnish with chopped green onions before serving.

These steps will guide you in creating this incredible dish effortlessly!