Creating Delicious Philly Cheese Steak Pasta is straightforward with the following steps:

1. Cook Pasta: Bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions until al dente. Drain and set aside.
2. Sauté Vegetables: In a large skillet, add olive oil over medium heat. Sauté the sliced onion and bell pepper for about 5 minutes, or until they begin to soften.
3. Add Garlic: Stir in minced garlic and cook for an additional minute until fragrant.
4. Cook Beef: Push the vegetables to one side of the skillet, then add the thinly sliced beef to the other side. Season with salt and pepper. Cook until beef is browned and cooked through, about 5-7 minutes. Mix the beef with the vegetables.
5. Create Sauce: Pour in the heavy cream, stirring to combine all ingredients. Bring to a gentle simmer.
6. Mix in Cheese: Gradually add the shredded cheese to the skillet, stirring until melted and smooth.
7. Combine Pasta: Add the drained pasta to the sauce mixture, tossing to coat evenly. Cook for an additional 2-3 minutes over low heat until heated through.
8. Adjust Seasoning: Taste and adjust seasoning with more salt and pepper if needed.
9. Garnish and Serve: Remove from heat and garnish with chopped parsley if desired.