Surprise Macaroni Salad

Ingredients

• 1 (8 oz.) pkg. elbow roni
• 1/4 c. chopped green onion
• 1/2 c. chopped radishes
• 1/2 c. chopped green pepper
• 1/2 c. sliced celery
• 1/2 c. Kraft lite mayonnaise
• 1 1/2 tsp. Dijon mustard
• 1 1/2 tsp. prepared horseradish
• 1 tsp. salt
• 1/8 tsp. pepper