Cook the elbow macaroni according to the package instructions.
In a large skillet, heat olive oil over medium heat.
Add sliced onions and bell peppers to the skillet.
Add the thinly sliced beef sirloin to the skillet.
Stir in Worcestershire sauce, salt, and pepper.
Combine the cooked macaroni with the beef and vegetables in the skillet.
Add the shredded mozzarella and provolone cheese.
Cook until the cheese is melted and everything is heated through.
Serve hot, garnished with additional cheese if desired.