It can't get any easier than a Duncan Hines dump cake.
- Preheat oven to 350ºF. Grease a 13"x 9" pan.
- Dump pineapple with juice into pan. Spread evenly. Dump in lemon pie filling. Sprinkle cake mix evenly over lemon layer. Dot with butter.
- Bake 50 minutes or until top is lightly browned. Serve warm or at room temperature.