01 - Lay the tortillas flat on a clean work surface.
02 - Spread a generous, even layer of hummus over each tortilla, leaving a 1/2-inch border around the edges.
03 - Arrange baby spinach leaves evenly across the hummus-covered tortillas.
04 - Distribute the julienned red bell pepper, shredded carrot, cucumber strips, sliced black olives (if using), and chopped fresh herbs evenly over the spinach layer.
05 - Starting from one edge, tightly roll up each tortilla into a firm log shape.
06 - Using a sharp knife, trim the uneven ends, then slice each roll into 6 even pinwheels.
07 - Arrange the pinwheels on a serving platter. Serve immediately, or cover and refrigerate until ready to serve.