Measure first 4 ingredients into large bowl. Stir. Cut butter into mixture until it resembles coarse crumbs. Make a well in the centre.
Add egg and milk to well. Stir until just moistened. Spread in greased 9 x 13 inch (22 x 33cm) baking pan.
Carefully spread pie filling on top.
TOPPING: Combine brown sugar and flour in small bowl. Cut butter until mixture resembles coarse crumbs. Sprinkle over pie fliiling. Bake in 375F (190C) oven for about 40 minutes until top is golden and filling bubbles at edges. Let stand for 10 minutes.