- Prepare the Ingredients: Gather all the ingredients listed above and prepare them as described. 
- Combine Chicken and Vegetables: In a large bowl, combine the diced chicken, cucumber, cherry tomatoes, avocado, and red onion. 
- Make the Dressing: In a separate bowl, whisk together the olive oil, lemon juice, salt, and pepper until combined. 
- Dress the Salad: Pour the dressing over the salad ingredients and gently toss everything together until well-coated. 
- Serve and Enjoy: Garnish with fresh parsley and serve immediately for the best flavor!