Preheat your oven to 350 degrees Fahrenheit
Lightly grease your casserole dish with a stick of butter (I used a 9x13 dish)
Arrange the slices of bread into the casserole dish so that the tops are facing up
In a large mixing bowl, whisk together eggs, milk, brown sugar, cinnamon and nutmeg.
Pour the egg mixture over the bread into the casserole dish, being sure to soak each piece.
Add the apples and pecans, pushing them down into the cracks between each slice of bread.
Combine the granulated sugar and cinnamon into a small bowl and sprinkle on top.
Bake in the oven uncovered for 40 minutes.
Let cool before serving. I dusted some confectioners sugar on top and to make it a little more special, a dollop of whipped cream.