01 - Lay the flour 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 the baby spinach leaves in an even layer over the hummus on each tortilla.
04 - Distribute the julienned 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, roll each tortilla up tightly into a firm log shape.
06 - Using a sharp knife, trim the uneven ends, then slice each rolled tortilla into 6 even pinwheels.
07 - Arrange the pinwheels on a serving platter. Serve immediately, or cover and refrigerate until ready to serve.