Turkey Salad Polynesian

INGREDIENTS

• 8 ounces uncooked mostaccioli pasta
• 2 cups cubed cooked turkey or 2 cups cooked chicken
• 3/4 cup sliced celery
• 3/4 cup chopped walnuts
• 1/4 cup thinly sliced green onion
• 1 (11 ounce) can mandarin orange segments, drained
• 1 (8 ounce) can pineapple tidbits, in own juice,drained (reserve juice)
• 1/2 cup mayonnaise
• 1/3 cup sour cream
• 2 tablespoons reserved pineapple juice
• 1/2 teaspoon salt
• Lettuce, optional