Heat olive oil in a large skillet over medium high heat. Add the onion and bell peppers and cook until softened.
Add the shaved steak and season to taste with garlic powder, onion powder, seasoned salt and pepper. Cook until browned.
Add the minced garlic and Worcestershire sauce. Cook for 2 minutes.
Pour in the beef broth and add the noodles. Season again to taste and stir to combine.
Cover and cook for about 12 minutes, or until the noodles are al dente.
Add the heavy cream, white American cheese and freshly grated mozzarella. Stir everything together until the cheese melts into the sauce.
Cover and continue cooking until the liquid is absorbed and the noodles are completely tender.