16 oz. lasagne noodle, cooked
6 c. mashed potatoes
1 onion, chopped
1 1/4 c. butter

Put butter and onion in small pan and melt over low heat. Remove from heat. Put a layer of lasagne on bottom of 9 x 13 inch baking dish. Put 2 cups of mashed potatoes on the noodles, spread the potatoes on the noodles, spread the potatoes on the noodles; do this 2 more times. Put 1 more layer of noodles. Pour butter and onions over top. Bake for 30 minutes at 400 degrees. Cut and serve.