Preheat oven to 400º. Spray mini- muffin tins. Cook pasta according to box directions. Set aside.

In medium size pan. Combine butter & flour . Whisk until butter is melted & flour us combined till smooth. Slowly add milk & bring to a simmer. Add 1&1/2 cups cheese , cream cheese, salt, pepper. Stir until creamy & smooth.

In a large bowl. Carefully stir pasta cheese sause & egg. Until pasta is coated.