Boil the Couscous: Bring a large pot of salted water to a boil. Add the couscous and cook for 5-7 minutes until tender.

Drain and Cool: Drain couscous in a fine mesh strainer and rinse under cold water for 1 minute.

Prepare the Cucumbers: Slice cucumbers into 1/4 inch coins and quarter each coin.

Combine Salad Ingredients: In a mixing bowl, combine the cooled couscous, cucumbers, parsley, and lemon zest. Toss gently.

Make the Dressing: In a separate bowl, whisk together lemon juice, olive oil, mayonnaise, garlic powder, salt, and pepper.

Dress the Salad: Pour the dressing over the salad mixture and toss until well-coated.

Add the Feta: Gently fold in crumbled feta cheese and adjust seasoning if needed.

Chill or Serve: Serve immediately or chill for 30 minutes before serving.