1Heat gas or charcoal grill.
2Place 10-inch grill pan on grill over medium heat. Sprinkle chicken with salt and pepper; place in grill pan. Cook about 8 minutes, turning occasionally, until juice of chicken is clear when center of thickest part is cut (at least 165°F).
3Divide lettuce evenly between 2 serving plates. Top each with half of chicken, pecans and strawberries. Drizzle desired amount of vinaigrette over each.