Wash and slice radishes into thin slices. Peel off outer skin of broccoli stalk and wash. Fill a medium-size pot half full with water and bring to a boil. Submerge broccoli in water and let boil in medium heat for 3 minutes. Drain and rinse in cold water; drain again. Cut broccoli into flowerets and 2-inch pieces. Mix with radishes, salt and pepper and toss with salad dressing.