Three Cheese Pasta Bake

1 (8oz) package penne pasta
2 Tbsp butter
2Tbsp flour
1 1/2 cups milk
1/2 cup half and half
1/2 cup shredded white cheddar cheese
1/4 cup grated parmesan cheese
1 cup shredded Gruyere cheese divided (swiss cheese may be substituted)
1 tsp salt
1/4 tsp pepper
pinch of ground nutmeg

Preheat oven to 350

prepare pasta according to instructions

melt butter in a medium saucepan over medium heat. whisk in flour; cook whisking constantly 1 minute. gradually whisk in milk and half and half; cook whisking constantly , 3-5 minutes or until thickened. stir in cheddar cheese, parmesan cheese, and 1/2 cup gruyere cheese, and next 3 ingredients until smooth.

stir together pasta and cheese mixture, and pour into 4 lightly greased 11x7 inch baking dishes (if using 8 oz backing dished, place in a jelly roll pan for easy baking and proceed as directed.) top with remaining 1/2 cup gruyere.

bake at 350 for 15 minutes or until golden and bubbly.