Add all of the vinaigrette ingredients to a bowl, and whisk together to combine. Pour the vinaigrette over the salad, and toss. Chill the salad for at least one hour before serving.
Notes
Pearl couscous: Cook according to package directions and cool completely before adding it to the salad.
Vegetables: The zucchini and yellow squash are added raw—no cooking necessary. Chop them into small, bite-sized pieces.
Fresh herbs: Use Italian parsley, basil or a combination of both.
Make ahead: This salad is best after chilling for at least 1 hour, giving the couscous and vegetables time to absorb the vinaigrette.
Add-ins: Crumbled feta, chopped cucumber, cherry tomatoes, olives or toasted pine nuts are all delicious additions.
Storage: Store leftovers covered in the refrigerator for up to 3 days. Give the salad a good toss before serving.