1 lg. can pumpkin pie mix
1 box yellow cake mix
1/2 c. butter
3/4 c. walnuts or pecans, chopped (optional)

Prepare pumpkin pie mix as directed. Lightly butter 9 x 13-inch baking dish. Pour pumpkin mix into dish. Take yellow cake mix and crumble over top. Melt butter and pour over the crumbs. Sprinkle with nuts. Bake at 350 degrees for 40 to 50 minutes.