01 - Lay the flour tortillas flat on a clean work surface.
02 - Spread a generous, even layer of hummus across each tortilla, leaving a 1/2-inch border around the edges to prevent overflow when rolling.
03 - Arrange 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, tightly roll each tortilla into a firm log shape, keeping the fillings tucked in as you go.
06 - Using a sharp knife, trim the uneven ends, then slice each rolled log into 6 even pinwheels.
07 - Arrange the pinwheels on a serving platter. Serve immediately, or cover tightly and refrigerate until ready to serve.