1Heat oven to 350°F (325°F for dark or nonstick pan). In large bowl, stir together cake mix and butter until crumbly; set aside.
2Spread pie filling and pineapple in ungreased 13x9-inch pan. Sprinkle cake mix mixture evenly over fruit.
3Bake 38 to 44 minutes or until deep golden brown. Cool 30 minutes. Serve warm or cool. Store loosely covered.