In a large mixing bowl, add the shredded chicken along with the halved cherry tomatoes, diced cucumber, and finely chopped red onion. Stir gently to combine the ingredients evenly.
In a separate small bowl, whisk together the mayonnaise, basil pesto, and lemon juice until the mixture is smooth and homogenous.
Gradually pour the creamy pesto dressing over the chicken and vegetable mixture.
Using a spatula, gently fold the ingredients together, ensuring that every piece is coated with the flavorful dressing.
Taste the mixture and season with salt and pepper as needed, adjusting to your preference.
If you choose, incorporate the toasted pine nuts at this stage for an added crunch and depth of flavor.
Cover the mixing bowl with plastic wrap or a lid and refrigerate the salad for at least 30 minutes, allowing the flavors to meld beautifully.
When ready to serve, remove the salad from the fridge, give it a gentle toss to redistribute the dressing, and then garnish generously with fresh basil leaves for a vibrant finish.
Notes
Serve on a bed of mixed salad greens for added color and texture, and consider using a wooden or ceramic bowl for a rustic touch.