Preheat The Oven To 350 Degrees F. Cook The Noodles According To The Package Directions And Drain; Set Aside. Meanwhile, In A Large Skillet, Heat The Oil Over Medium-High Heat. Saute The Onions For 8 To 10 Minutes Or Until Golden Brown. Reserve 1/2 Cup Onions For Topping. Add The Remaining Onions, Pepper, And Cheese To The Potatoesand Mix Well. Place 3 Noodles On The Bottom Of A 9 X 13-Inch Glass Baking Dish That Has Been Coated With Nonstick Vegetable Spray.Spread The Noodles With One-Third Of The Potato Mixture. Layer With 3 More Noodles And Continue Until There Is A Total Of 4 Layers Of Noodles And 3 Layers Of Potatoes (With A Noodle Layer On The Top). Spread The Reserved Onions On Top. Cover With Aluminum Foil And Bake For 30 Minutes Or Until Heated Through.