Steam broccoli until tender, about 5~6 minutes. I microwave the broccoli for 2~3 minutes. Drain and place in a bowl.
Add the chickpeas, scallions and cilantro. Mix well and set aside.
To make the vinaigrette: In a small bowl, combine mustard, lemon zest, lemon juice, honey, salt and pepper. Drizzle in the olive oil, while stirring continuously, until the dressing emulsifies.
Pour the dressing over the broccoli mixture, mix gently and let sit for 15~20 minutes for the flavors to meld.