In a bowl, combine all the ingredients for the marinade. Add the chicken and let marinate up to 4 hours.
Cook the couscous according to package instructions. Let cool and drizzle with olive oil.
Cook the chicken on the BBQ over medium-low heat, approximately 8 minutes each side (or according to desired doneness).
Slice the grilled chicken and serve over a bed of couscous and greens, with cherry tomatoes, cucumbers, and Saputo Feta cheese. Garnish with tzatziki, lemon wedges, toasted pita bread, and extra-virgin olive oil.