Curried Waldorf Salad

Ingredients

• 1/4 cup fat-free mayonnaise
• 1/4 cup plain fat-free yogurt
• 2 teaspoons fresh lemon juice
• 1/2 teaspoon curry powder
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 2 medium Red Delicious apples, cored and cubed
• 1/4 cup chopped celery
• 2 tablespoons raisins
• 2 tablespoons chopped toasted walnuts