Easy Asian Beef and Noodles

Description
I created this dish on a whim to feed my hungry teenagers. It's since become a dinnertime staple, and now two of my grandchildren make it in their own kitchens.
Ingredients
- 1 beef top sirloin steak (1 pound), cut into 1/4-inch-thick strips
- 6 tablespoons reduced-sodium teriyaki sauce, divided
- 8 ounces uncooked whole grain thin spaghetti
- 2 tablespoons canola oil, divided
- 3 cups broccoli coleslaw mix
- 1 medium onion, halved and thinly sliced
- chopped fresh cilantro, optional
Directions
- Toss beef with 2 tablespoons teriyaki sauce. Cook spaghetti according to package directions; drain.
- In a large skillet, heat 1 tablespoon oil over medium-high heat; stir-fry beef until browned, 1-3 minutes. Remove from pan.
- In same skillet, heat remaining oil over medium-high heat; stir-fry coleslaw mix and onion until crisp-tender, 3-5 minutes. Add spaghetti and remaining teriyaki sauce; toss and heat through. Stir in beef. If desired, sprinkle with cilantro.