Cook noodles according to package directions. Drain well and set aside.

Heat oil in a large sauté pan over medium high heat. Add broccoli and cook 5 minutes. Add peppers, onions and beef and cook 5 minutes more. Add teriyaki sauce and bring to a simmer. Cook 5 minutes or until beef is cooked through and vegetables are tender but crisp, adding a few tablespoons of water if needed.

Add noodles to sauté pan and toss to coat. Divide between 4 bowls to serve.