Preparation Whisk oil, vinegar, and rosemary in small bowl to blend; season dressing with salt and pepper. Place chicken in shallow dish. Add 1/4 cup dressing; turn chicken to coat. Let stand 15 minutes. Heat large skillet over medium-high heat. Add chicken, still coated with dressing, to skillet. Sauté until cooked through, about 5 minutes per side. Transfer to work surface. Cool chicken 5 minutes; cut into 1/2-inch pieces. Combine chicken, almonds, celery, and green onions in large bowl. Add remaining dressing and toss to blend. Season salad with salt and pepper.
Preparation Whisk oil, vinegar, and rosemary in small bowl to blend; season dressing with salt and pepper. Place chicken in shallow dish. Add 1/4 cup dressing; turn chicken to coat. Let stand 15 minutes. Heat large skillet over medium-high heat. Add chicken, still coated with dressing, to skillet. Sauté until cooked through, about 5 minutes per side. Transfer to work surface. Cool chicken 5 minutes; cut into 1/2-inch pieces. Combine chicken, almonds, celery, and green onions in large bowl. Add remaining dressing and toss to blend. Season salad with salt and pepper.