Cook the fettuccine pasta according to package instructions until al dente. Drain and set aside.
In a large skillet, heat the olive oil over medium heat. Add the sliced onions and bell peppers, cooking until they are tender, about 5 minutes.
Add the thinly sliced beef to the skillet along with minced garlic, salt, black pepper, and paprika. Cook until the beef is browned and cooked through, about 5-7 minutes.
Reduce the heat to low, and add the softened cream cheese and beef broth to the skillet. Stir until the cream cheese is fully melted and combined.
Add the cooked fettuccine to the skillet, tossing to coat the pasta in the creamy beef mixture.
Stir in the provolone cheese until melted, then mix in the grated Parmesan cheese. Cook for another 2-3 minutes until the cheese is bubbly and the pasta is heated through.
Serve immediately, garnishing with additional cheese or freshly ground black pepper, if desired.