Steps
1. Season the chicken breast with salt and pepper and grill or cook it in a skillet until cooked through. Let it cool, then dice into bite-sized pieces.
2. In a bowl, combine the diced chicken, celery, red bell pepper, cucumber, and parsley.
3. Add mayonnaise to the bowl and mix well until all ingredients are evenly coated.
4. Season with additional salt and pepper if needed.
5. Serve the creamy chicken salad on a bed of lettuce or in a sandwich.