Preheat oven to 375.
Place sliced apples in a medium bowl. Drizzle with honey, then add cornstarch, cinnamon and nutmeg. Stir well to coat the apples.
Transfer apples to a 9x13 or 8x12 casserole dish sprayed with cooking spray.
In a separate bowl, mix flour, sugar, baking powder, baking soda and salt until well combined.
Cut in butter using a pastry cutter or two knives, until the mixture resembles small peas.
Add milk and stir until just combined. The batter will be thick.
Add the batter mixture in dollops over the apples in the casserole dish and use your fingers to spread it out a little. (It's OK if it's not covering all of the apples - it will continue to spread out while baking.) Sprinkle the brown sugar evenly over the top of the dish.
Bake at 375 for 30-35 minutes, until the topping is golden brown and set.
Remove and let sit for 10 minutes before serving.