Stir in the minced garlic and cook for an additional minute until fragrant.
Push the vegetables to one side of the skillet. Add the sliced beef to the other side, seasoning it with salt and pepper. Cook for about 3-4 minutes until browned, stirring occasionally.
Pour in the beef broth and heavy cream, stirring to combine everything. Bring the mixture to a simmer.
Gradually stir in the shredded provolone cheese until melted and well combined. The sauce should become creamy.
Add the cooked pasta to the skillet, tossing everything together until the pasta is evenly coated with the cheesy sauce.
Remove from heat and serve hot, garnished with chopped parsley if desired.