01 - Slice each croissant in half horizontally using a bread knife.
02 - Spread a generous layer of softened goat cheese onto the cut side of each croissant base.
03 - Arrange thin slices of apple evenly over the goat cheese.
04 - Drizzle honey or fig jam over the apples if using, then place a layer of arugula or baby spinach on top. Season lightly with freshly ground black pepper.
05 - Sprinkle with chopped walnuts or pecans for additional texture, if desired.
06 - Close each sandwich with the top half of the croissant.
07 - Serve immediately, or wrap tightly and refrigerate for up to 2 hours.