1 (6 or 8 oz.) can sliced mushrooms
2 tbsp. prepared mustard
2 tbsp. chopped parsley
2 tsp. lemon juice
2 c. cold, cooked macaroni
1 tsp. salt
3/4 c. mayonnaise
2 tbsp. minced onion
1 c. chopped celery
1 tsp. tarragon vinegar
1/2 tsp. black pepper

Combine mayonnaise, mustard, onion, parsley, lemon juice, vinegar, salt and pepper. Mix thoroughly. Drain and slice mushrooms; add celery, macaroni and mushrooms to mixture. Cover and refrigerate 1 or 2 hours before serving to let flavors mingle. Makes 1 quart.