01 - Using a bread knife, slice each croissant in half horizontally.
02 - Evenly distribute and spread a generous layer of softened goat cheese onto the cut sides of the bottom halves.
03 - Arrange apple slices in a single, overlapping layer on top of the goat cheese.
04 - Drizzle each sandwich with honey or fig jam, if desired.
05 - Place a layer of arugula or baby spinach over the apples and season with freshly ground black pepper.
06 - Sprinkle with chopped walnuts or pecans for additional crunch, if using.
07 - Gently place the top halves of the croissants over the fillings to close the sandwiches.
08 - Serve immediately, or wrap each sandwich and refrigerate for up to 2 hours if preparing in advance.