In large bowl, mix dressing and 1 teaspoon of the soy sauce; add broccoli, and toss to coat. Pour broccoli mixture onto pan; spread in single layer. In same bowl, mix brown sugar, salt and remaining 2 teaspoons soy sauce. Add beef to mixture; turn to coat. Add beef to pan with broccoli. Roast 10 to 14 minutes or until beef is cooked to desired doneness (145°F for medium-rare) and broccoli is fork-tender. Sprinkle with sesame seed.