Healthier Waldorf Salad

Ingredients

• 1/4 cup plain yogurt (non-fat, low-fat, or full-fat)
• 1/4 cup mayonnaise
• 1/4 cup chopped, fresh apple (leave the skins on)
• 1 tablespoon fresh lemon juice
• 1/4 teaspoon salt
• 1 pinch black pepper
• 4 cups chopped crunchy lettuce (such as Romaine)
• 1 chicken breast, grilled, cut into slices, and cooled
• 1/2 cup sliced red grapes
• 1/2 cup sliced celery ribs
• 1/2 large apple, chopped
• 1/4 cup walnuts, toasted in a 350-degree oven for 5-7 minutes and cooled