1 pkg Betty Crocker wild blueberry muffin mix
1 can (21 oz) blueberry pie filling
1 tbsp. lemon juice
1 tsp cinnamon

Drain blueberries from muffin mix; reserve liquid. Stir together reserved liquid, the pie filling, lemon juice and cinnamon; heat to boiling. Pour into ungreased baking pan, 9x9x2". Prepare muffin mix as directed on package except - pour batter on hot pie filling. Bake at 400F for 25 to 30 minutes.