Chicken Pasta Salad

4 C. bow tie pasta
4 c. chicken, cooked and cubed
1/2 c. chopped green onion
1 c. water chestnuts
1 can pineapple tidbits
1 1/2 c. mayonnaise
1/4 c. red wine vinegar
2 tsp. salt
1/2 tsp. pepper
2 c. red grapes, halved
1 c. pecans, coarsely chopped
1/2 c. craisins

Cook pasta according to directions. Drain. In a large bowl combine all ingredients except grapes, pecans and craisins. Marinate mixture in refrigerator for several hours or overnight. Add grapes, pecans and craisins just before serving. Makes 12 cups.