For the most tender chicken, poach boneless, skinless chicken breasts gently in salted water or broth until just cooked through, then let them cool completely before chopping for the salad. Grilled or rotisserie chicken also works well and adds extra flavor, just remove the skin and bones first. To keep the wraps from getting soggy, always dry the lettuce thoroughly and wait to assemble until just before eating. The chicken salad can be made up to 3 days in advance and stored in an airtight container in the refrigerator, but if you are using avocado, add it right before serving so it does not brown. If you prefer a lighter dressing, you can replace up to half of the mayonnaise with full-fat Greek yogurt while still staying keto, as long as you keep an eye on the net carbs per serving. Pack the chicken salad and lettuce leaves separately for lunches and let everyone build their own wraps at the table or on the go.