Fragrant, crunchy Asian pears add a refreshing melon-like flavor to the healthy chicken salad recipe. Look for the large, brown, apple-shaped fruit in well-stocked supermarkets near other specialty fruit.
Place chicken and bay leaves in a medium saucepan, add water to cover and bring to a boil. Cover, reduce heat to a gentle simmer and cook until an instant-read thermometer inserted into the thickest part registers 165 degrees F, 10 to 15 minutes. Let the chicken cool in its poaching liquid for 15 minutes.
Meanwhile, whisk oil, vinegar, ginger, mustard and 1/2 teaspoon salt in a small bowl. Combine spinach, pear, cucumber and radishes in a large bowl.
Transfer the chicken to a clean cutting board and shred into bite-size pieces. Season with the remaining 1/4 teaspoon salt. Add to the salad, drizzle with the dressing and toss to coat. Sprinkle with sesame seeds.
To make ahead: Refrigerate poached chicken (Step 1) for up to 3 days.