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Open the can of blueberries that come with the muffin mix and drain, setting liquid aside.
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In a small saucepan, combine the reserved liquid, pie filling, lemon juice, and cinnamon; heat to boiling.
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Remove from stove and pour in 9-inch square baking pan.
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Prepare the muffin mix as directed on the package, but pour the finished batter onto the hot pie filling mixture, spreading evenly.
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Bake in a preheated 400F oven for 25 to 30 minutes or until top is golden.
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Serve warm or at room temperature.