Blueberry Pineapple Dump Cake
["1 can blueberry pie filling", "1 large size can crushed pineapple", "1 yellow cake mix", "1 stick margarine", "1 tsp. cinnamon"]
["In a long butter dish, spread blueberry filling evenly across bottom.", "Spread pineapple even for next layer.", "Slice the margarine thinly and place evenly on top.", "Bake at 325\u00b0 or 350\u00b0 for 30 to 35 minutes.", "Serve warm or cold."]
["blueberry pie filling", "pineapple", "yellow cake", "margarine", "cinnamon"]