For a vegetarian option, omit the chicken and add a can of drained and rinsed chickpeas or diced avocado for creaminess. Feel free to customize the vegetables! Diced cucumber, cherry tomatoes, or even a sprinkle of crumbled feta cheese would be delicious additions. If you don't have pearl couscous, regular couscous can be used, but reduce the cooking time accordingly. The salad can be made a day ahead and stored in the refrigerator. The flavors will intensify overnight.