Preheat oven to 180°C/350°F. Grease an 8x8 inch baking dish with butter or oil.
In a medium bowl, stir together the oats, ground ginger, ground cinnamon, ground nutmeg, salt and baking powder.
In a large bowl, whisk together the almond butter, egg, vanilla, maple syrup and molasses until smooth. Next, whisk in the milk until well combined.
Add the dry ingredients to the wet ingredients and stir to combine, making sure everything is well mixed.
Stir in the apple, ginger and chocolate chips. Arrange the apple slices on top. Pour into the prepared dish and bake for 35-40 minutes or until set and the top is golden brown.