1 box lasagne noodles
8 ounces velveeta cheese, cubed
6 large potatoes, peeled, cubed and cooked
1 small onion, chopped
1 stick butter

Preheat oven to 350 degrees.  Cook noodles according to package directions; drain. Drain potatoes, add velveeta cheese and mix with potatoes.  Fry onion in butter until soft.  In 13 x9 x2 dish layer in the following order: 1/3 of the noodles, 1/2 potato mixture, 1/3  onion mixture.  Repeat layers one more time and top with the rest of the noodles.  Spread remaining onion mixture on top.  Cover with foil and bake 30-40 minutes or heated through.