In a large bowl combine cooked orzo with pesto, diced cucumber, sun-dried tomatoes, chickpeas, feta, parsley, arugula, and fresh lemon juice. Gently mix until combined.
2 heaping tablespoon pesto, ⅓ cup sun-dried tomatoes, ⅓ cup feta, 1 cup arugula, 1 cup chickpeas, ½ lemon