Arrange broccoli and red pepper in a steamer basket over boiling water. Cover and steam 5 minutes or until crisp-tender; place in a medium bowl.
While vegetables cook, place a small, heavy skillet over medium-high heat until hot. Add sesame seeds, and cook, stirring constantly, 1 minute or until toasted. Set sesame seeds aside.
Combine soy sauce and remaining 4 ingredients in a small bowl, stirring well. Microwave at HIGH 45 seconds or until bubbly. Pour sauce over vegetables; sprinkle with sesame seeds, and toss gently.