01 - Combine the drained chickpeas, baby spinach, garlic clove, tahini, lemon juice, olive oil, ground cumin, and salt in a food processor. Process until smooth, scraping down the sides as needed. Gradually add cold water, one tablespoon at a time, until the hummus reaches a creamy, spreadable consistency.
02 - Lay each whole wheat tortilla flat on a clean work surface. Spread 2 to 3 tablespoons of the spinach hummus evenly across each tortilla, leaving a small border around the edges to prevent overflow when rolling.
03 - Arrange the shredded carrots, sliced red bell pepper, cucumber, red onion, and avocado slices in a horizontal line across the center of each tortilla. Drizzle with yogurt if using, and sprinkle with chopped parsley or cilantro.
04 - Fold in the left and right sides of each tortilla, then tightly roll from the bottom up to enclose the fillings. Slice each wrap in half on a diagonal. Serve immediately, or wrap individually in parchment paper for a portable lunch.