Cheesy Pasta Bake

 

2 T. butter or margarine

¼ c. flour

3 c. milk

4 c. shredded extra sharp cheddar cheese

¾ c. shredded parmesan cheese, divided

¾ t. salt

1 t. pepper

16 ounces penne pasta, cooked

 

Melt butter in dutch oven over medium heat, whisk in flour until smooth.  Gradually whisk in milk, and cook whisking constantly, 3 minutes or until thickened.  Add cheddar cheese, ¼ c. parmesan cheese, salt, and pepper, whisking until cheese melts.  Add pasta, tossing to coat.  Pour into a lightly greased 13 x 9 baking dish.  Sprinkle with remaining ½ cup parmesan cheese.  Bake 350 degrees for 5 minutes or until cheese melts.