Steam the sweet potatoes for about 10 minutes until tender. Rinse under cool water and allow to cool completely.
In a large mixing bowl, combine romaine, brussels sprouts, chickpeas, quinoa, pecans and cooled sweet potatoes. Set aside.
In a small bowl, whisk together the dressing ingredients. Taste and adjust seasoning with fresh pepper if desired.
Pour dressing over salad and toss to combine.
Serve salad immediately (or chill for no more than 20 minutes). Garnish with additional chives and chili flakes if desired.
Notes
*To shred the brussels sprouts, either use a knife to slice them very thinly or use a box grater on the largest setting, a mandolin slicer or a food processor.