1.Spray Interior Of Slow Cooker With Non-Stick Vegetable Spray. 2.In Medium Skillet Over Medium Heat, Crumble And Cook Sausage Until Brown. Place In Slow Cooker. Add Noodles, Ricotta, 2 Cups Mozzarella, Pasta Sauce And Parsley. Stir Gently To Combine. 3.Cover And Cook On Low For 4 To 6 Hours. 5 Minutes Before Serving, Top With Remaining 1 Cup Mozzarella Cheese. Cover To Melt Cheese.