Cook the tortellini according to package directions, drain, and set aside.
In a large skillet, sauté onions, bell peppers, and mushrooms in olive oil until tender.
Add sliced beef, season with salt and pepper, and cook until browned.
Stir in beef broth and Worcestershire sauce and simmer for about 5 minutes.
Add the tortellini and toss to coat.
Top with provolone, cover, and cook until the cheese is melted. And ready to serve!