Preheat the oven to 350 degrees F and spray a 9x9 pan with non-stick spray.

Bring a large pot of water to a boil of high heat.

Add a heavy pinch of kosher salt to the water and pour in the pasta.

Cook until al dente, following the box directions.

Once the pasta is cooked drain and set aside until ready to use.

In a large high sided skillet add butter and set over medium heat.

Once the butter has melted add in the flour and whisk to combine.

Once the mixture has become smooth slowly whisk in warmed milk until fully combined.

Whisk the mixture until it's smooth and starts to thicken.

Once it has thickened add in gorgonzola and sharp cheddar cheese.

Turn off the heat on the stove and stir the mixture until the cheese is completely melted.

Stir in pasta, bacon, pepper, and nutmeg.

Add mixture to the prepared pan, top with additional cheese if desired, and bake for 35 minutes until the top with lightly browned.