1 (7 oz.) pkg. elbow macaroni, cooked
1 (12 1/2 oz.) can tuna, drained
1 med. tomato, chopped
1 green pepper, chopped
10 radishes, sliced
1/3 c. chopped onion
3/4 c. bottled Italian dressing
2 tsp. Dijon mustard
1 tsp. salt
1/4 tsp. pepper

Prepare elbow macaroni according to package. Drain. In large bowl combine macaroni, tuna, tomato, green pepper, radishes, onions. In small bowl blend remaining ingredients. Add to macaroni mixture and toss gently to mix. Cover and chill thoroughly. Toss gently and serve.