1 c. orzo
1 c. red seedless grapes
1 1/2 c. celery
1/2 c. onion, minced fine
2 cans mushrooms
1/2 c. green pepper
1 1/2 tsp. dry mustard
2 c. diced cooked chicken, chilled
1-2 c. Miracle Whip
1 tsp. salt

Prepare orzo according to package. Mix together all ingredients, ending with Miracle Whip. Chill for 2 hours, serve cold.