Cook the tortellini according to 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 and garlic to the skillet.
Pour in the beef broth and bring to a simmer.
Stir in heavy cream and bring to a gentle simmer.
Add the grated provolone cheese, stirring until melted.
Combine the cooked tortellini with the sauce in the skillet.
Season with salt and pepper to taste, and serve warm.