crunchy waldorf salad with tuna

Ingredients For crunchy waldorf salad with tuna

• 1 can

  9 1/4 oz. tuna, packed in water, drained and flaked
• 1 lg

  apple, cored and chopped
• 1/3 c

  celery, chopped
• 1/3 c

  chopped walnuts
• 1/3 c

  raisins, currants or pitted dates, chopped
• 1/2 c

  plain nonfat or lowfat yogurt
• 1/4 c

  mayonnaise
• 1/2 c

  shredded cheddar or monterey jack cheese (2 oz)
• large lettuce leaves