Divide the roasted vegetables between two bowls, top with the chickpeas, and drizzle with the tahini dressing. To make tahini dressing: In a food processor, purée all ingredients until smooth.

4. To serve, slice the yams into bite-size pieces. Divide the roasted vegetables between two bowls, top with the chickpeas, and drizzle with the tahini dressing. To make tahini dressing: In a food ...