Buffalo Chicken Mac and Cheese Casserole combines the creamy richness of the cheese and the unexpectedness of the spice in a delicious, easy to make dish.
Lightly grease a 9x13 baking dish with butter or with non-stick cooking spray. Set aside.
Place a large saucepan over medium heat and once it's hot add the butter. Stir and melt the butter, carefully not to burn it.
Add chicken and cook stirring until golden brown.
Add the flour and whisk until fully combined.
Add onion powder, garlic powder, paprika, mustard, salt, and pepper.
Stir over low-medium heat, bring the mixture to a boil and let it simmer for about 2 minutes.