Banana Bread French Toast

Serves 3 to 4
1 recipe chocolate chip-coconut banana bread, sliced into ½ inch thick slices
3 eggs, lightly beaten
1 cup milk
2 teaspoons vanilla extract
1/2 teaspoon ground cinnamon
1/8 teaspoon ground nutmeg
2 cups cornflakes, finely crushed
1/4 cup butter, softened and divided
1 banana, peeled and sliced
maple syrup