1. Preheat oven to 375°.
2. To prepare filling, combine the first 6 ingredients. Spoon into a 13 x 9–inch baking dish coated with cooking spray.
3. To prepare topping, lightly spoon flour into dry measuring cups. Combine flour and next 4 ingredients (through salt) in a medium bowl; cut in butter with a pastry blender or 2 knives until mixture is crumbly. Sprinkle topping over filling. Bake at 375° for 30 minutes or until bubbly. Let stand 10 minutes.