Cook the tortellini according to package instructions. Drain and set aside.
In a large skillet, heat olive oil over medium heat. Add the ground beef or shaved steak and cook until browned.
Add the diced bell pepper, onion, and minced garlic to the skillet. Cook until vegetables are tender.
Stir in the cream of mushroom soup, beef broth, heavy cream, Worcestershire sauce, garlic powder, onion powder, and black pepper. Simmer for 5 minutes.
Add the cooked tortellini to the skillet and stir to combine. Top with shredded cheese and cover until cheese melts.
Notes
Serve hot. You can use shaved steak for a more authentic Philly cheesesteak flavor.