Bring A Large Pot Of Lightly Salted Water To A Boil. Cook Pasta In Boiling Water For 8 To 10 Minutes, Or Until Al Dente; Drain, And Set Aside. In A Food Processor, Place The Milk, Flour, Cottage Cheese, Garlic Powder, Onion, Salt And Pepper, And Parmesan Cheese. Blend Until Smooth. Transfer The Blended Mixture To A Saucepan Over Medium Heat. Mix In The Chicken, And Cook Until Heated Through. Serve Hot Over Pasta.