curried chicken and peanut salad

Ingredients

• 1/2 cup plain, nonfat yogurt
• 1/4 cup light mayonnaise
• 1 - 1 1/2 teaspoons curry powder
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 3 cups cooked chicken, chopped
• 1 cup seedless red or green grapes, halved
• 1/2 cup water chestnuts, chopped
• 1/2 cup chopped celery (chopped red or green bell pepper optional)
• - lettuce leaves
• 1/3 cup chopped peanuts