1/2 lb. package sm. or med. shells, elbow macaroni or bow ties, uncooked
8 oz. non fat plain or vanilla yogurt
1/4 c. frozen, thawed orange juice concentrate
15 oz. can mandarin oranges, drained
1 c. halved, seedless grapes
1 med. apple, cored & chopped
1/2 c. diced celery
1/2 c. chopped walnuts

Cook pasta according to package directions; drain. Blend yogurt and orange juice concentrate in small bowl. Combine pasta and remaining ingredients. Add yogurt mixture; toss to coat. Cover and refrigerate. Serves 8.