Toss the chicken with the salad dressing in a large resealable plastic bag and refrigerate for 1 hour.
Remove the chicken from the marinade, pat dry with a paper towel, and sprinkle on both sides with salt and pepper.
Preheat a grill or grill pan over medium-high heat. Grill the chicken until cooked through (165 degrees F), 7 to 8 minutes per side. Let cool, then cut into bite-size pieces.
Toss together the cucumbers, onions, kale, couscous, feta, tomatoes, olives and dill in a large bowl. Add the grilled chicken and drizzle with the desired amount of dressing. Toss to coat. Season with salt and pepper. Garnish with the crispy chickpeas.