Preheat oven to 350 degrees.
Toss apples, blueberries, sugar, flour, lemon juice and cinnamon;
spread in 8-inch square baking dish.
Combine brown sugar, flour, rolled oats and cinnamon.
Pour in maple syrup and butter; toss until moistened.
Sprinkle over fruit.
Bake for 1 hour or until golden and fruit is fork tender.
Let cool on rack for 15 minutes.