Preheat oven to 375°.
To prepare filling, combine apples and next 7 ingredients (apples through dash of salt). Spoon apple mixture into a 13 x 9-inch baking dish.
To prepare topping, combine oats and remaining ingredients. Sprinkle over apple mixture. Cover with foil; bake at 375° for 40 minutes. Uncover; bake an additional 20 minutes or until topping is crisp and juices are thick and bubbly.