1. Prepare the noodles as per the directions on the package. Rinse in cold water until cook and strain dry. Set aside.
2. In a wok or skillet over medium heat, add the oil and the tempeh cubes. Cook for 7-8 minutes, stirring occasionally, then add broccoli and peppers. Continue cooking for another 3-4 minutes then add sauce and noodles. Stir to coat, and lightly cook until noodles are warm and have absorbed most of the sauce. Remove from heat and transfer to bowls for serving.
3. Garnish with green onions, and sesame seeds. Serve.