Preheat the oven to Gas Mark 4 (350F degrees). In a 8" x 8" oven proof dish, toss the diced pears with a little lemon juice (if not baking immediately - this will stop them browning). Sprinkle over the ground ginger and mixed spice, and toss together, then stir in the chocolate chips.
In a medium bowl, stir together the oats, flour and ground cinnamon. Drizzle over the maple syrup, then the liquid coconut oil, and stir well until everything is combined.
Scatter the oat mixture evenly over the pears, then place the dish on the middle shelf of the oven for 35-45 minutes or until the fruit is cooked through and the topping is lightly browned (mine took 38 minutes).
Remove from the oven, and allow to stand for 5-10 minutes before serving with cream, custard or a scoop of ice-cream.