Bring A Large Pot Of Lightly Salted Water To A Boil. Add Pasta And Cook For 8 To 10 Minutes Or Until Al Dente; Drain. In A Large Skillet Over Medium Heat, Warm Condensed Soup. Do Not Dilute Soup. Add Cheese And Stir Until Melted And Thoroughly Mixed. Stir In Salt. Add Seashell Pasta To Cheese Mixture And Stir Until Evenly Coated; Serve Immediately.