In a small bowl, combine the whipped cream cheese and ranch seasoning until smooth.
Lay the tortillas flat on a clean surface.
Spread the cream cheese mixture evenly over each tortilla, leaving about a 1-inch border around the edges.
Arrange the red bell pepper, carrots, yellow bell pepper, spinach, and purple cabbage in thin rows across each tortilla.
Add the shredded chicken if using.
Roll each tortilla tightly into a log. If needed, spread a little extra cream cheese along the edge to seal.
Refrigerate the rolls for 20–30 minutes to make slicing easier.
Using a sharp knife, slice each roll into 1-inch Rainbow Veggie Pinwheels.
Arrange on a serving platter and enjoy immediately.