Cook the pasta according to the directions on the package, drain when pasta is al dente and set it aside. Spray a 9x13 pan with cooking spray and set aside.

Preheat the oven to 350 degrees.

In a large saute pan with high sides, melt the butter over medium/low heat. Add in the flour and stir to let the flour cook for about a minute. Add in the minced garlic and cook for 30 seconds. Don’t let it burn. Whisk in the milk and the half n half and continue to stir while the sauce thickens. Add in the salt, onion powder and white pepper.

Stir in the cheeses, reserving a handful of each type of cheese to sprinkle on top.

Add in the chicken and broccoli and stir well to combine with the sauce.

Place the pasta in the 9x13 pan and pour the sauce over the pasta and stir well to mix.

Sprinkle the top with the extra cheese and place in the oven to bake for 20-25 minutes, until the top of the cheese starts to turn golden.

Remove and serve hot.