In a large mixing bowl, combine the cream cheese and French onion soup mix until smooth.
Add the shredded chicken, sliced olives, chopped red peppers, chopped spinach, and two-thirds of the cherry tomatoes.
Stir everything together until well combined. Season with ground black pepper.
Spread one-quarter of the filling evenly over a spinach wrap, leaving about a 1cm border around the edge.
Roll the wrap tightly into a log and wrap it in plastic wrap.
Repeat with the remaining wraps and filling.
Place the wrapped rolls in the freezer for 30 minutes to firm up.
Remove from the freezer and trim the ends from each roll.
Slice each roll into 3cm-thick pinwheels.
Arrange the pinwheel slices on a serving board in the shape of a Pinwheel Christmas Tree.
Decorate with the remaining cherry tomatoes, rosemary sprigs, and a decorative star if desired.
Serve immediately or refrigerate until ready to serve.