Preheat oven to 350 F. Lightly oil an 8x8 inch baking dish. Peel, core and slice apples. Combine with lemon juice, ginger, half the cinnamon and apple juice concentrate. Spoon into baking dish.
Mix nuts, oats, remaining cinnamon, baking soda and syrup. Sprinkle over apple mixture. Bake until topping is golden brown, about 20 to 25 minutes. Serve warm.
