Creating the One-Pot Philly Cheesesteak Soup is straightforward if you follow these easy instructions:

1. Brown the Beef: In a large pot, heat olive oil over medium-high heat. Add the thinly sliced beef and season with salt and pepper. Cook until browned, about 5-7 minutes. Remove beef and set it aside.
2. Sauté the Vegetables: In the same pot, add diced onion and cook for 2-3 minutes until translucent. Then, add the red and green bell peppers and cook for an additional 3-4 minutes until tender.
3. Add Garlic: Stir in the minced garlic and cook for about 1 minute until fragrant.
4. Combine Broth and Seasoning: Pour in the beef broth, Worcestershire sauce, and Italian seasoning. Bring the mixture to a boil.
5. Stir in Cream: Once boiling, reduce heat to low and stir in the heavy cream, blending thoroughly.
6. Return the Beef: Add the browned beef back into the pot and let the soup simmer for about 5-10 minutes, allowing flavors to meld together. Adjust seasoning with more salt and pepper if needed.
7. Melt the Cheese: Sprinkle the shredded cheese over the soup, allowing it to melt completely before removing from heat.
8. Garnish and Serve: Ladle the soup into bowls and garnish with chopped parsley for added freshness and presentation.

These straightforward steps make it easy to whip up a batch of this comforting soup in no time!