01 - Preheat oven to 350°F. Grease a 9x9-inch baking dish.
02 - In a large mixing bowl, blend rolled oats, chopped nuts, baking powder, ground cinnamon, nutmeg, and salt.
03 - In a separate bowl, whisk milk, eggs, melted butter, maple syrup, and vanilla extract until fully incorporated.
04 - Add wet ingredients to dry mixture. Stir until combined, then gently fold in diced apples and dried fruit.
05 - Pour batter into the greased baking dish and spread evenly.
06 - Set in the oven and bake for 35 minutes until golden and set.
07 - Remove from oven and let cool for 5 minutes before serving. Serve warm, optionally with a splash of milk or a dollop of yogurt.