Cook the Tortellini: Begin by cooking 1 lb of cheese tortellini according to package instructions. Once cooked, drain and set aside.
Cook the Beef: In a large skillet, heat 1 tablespoon of olive oil over medium-high heat. Add the thinly sliced beef steak, cooking until browned on both sides, about 2-3 minutes per side. Remove the beef from the skillet and set aside.
Sauté the Veggies: In the same skillet, add in the sliced green bell pepper, onion, mushrooms, and minced garlic. Season everything with salt and pepper to taste. Stir occasionally while cooking, allowing the vegetables to soften, which takes about 5-7 minutes.
Combine Ingredients: Return the cooked beef to the skillet, and stir in 1 cup of beef broth, along with 2 tablespoons of Worcestershire sauce and 1 tablespoon of soy sauce. Allow the mixture to come to a simmer, cooking for an additional 2-3 minutes for flavors to meld.
Mix with Tortellini: Add the cooked cheese tortellini into the skillet, tossing everything together until well-combined.
Melt the Cheese: Sprinkle 2 cups of shredded provolone cheese over the top of the pasta mixture. Cover the skillet with a lid and let it cook for an additional 2-3 minutes or until the cheese becomes melted and bubbly.
Serve and Garnish: Once the cheese is melted, remove the skillet from heat and garnish with chopped fresh parsley if desired. Dig in and enjoy your Philly Cheesesteak Tortellini Pasta!