Boil a pot of water and cook the noodles according to the directions on the box.
Heat a large skillet over medium heat. Cook the beef until no longer pink and drain the grease. Pour the beef onto a plate and cover with foil.
In a small bowl whisk together the hoisin sauce, soy sauce, garlic and ginger powder.
Add the broccoli, carrots and red pepper to the skillet. Pour in 1/4 cup water and cover the skillet. The water will steam the vegetables. Cook 5-7 minutes.
Add the water chestnuts, green onions, and sauce. Also, add the noodles and beef. Use tongs to mix everything together. Let it cook for 3 minutes while mixing together.