In a small bowl, whisk together the beef broth, Worcestershire sauce, soy sauce, and cornstarch (if using). Pour the sauce mixture into the skillet with the sautéed vegetables. Cook for 1-2 minutes, or until the sauce has thickened slightly.
5 – Assemble the Casserole:
Spread half of the cooked vegetables in the bottom of the prepared baking dish. Top with half of the cooked beef slices.
Layer half of the sliced provolone cheese over the beef and vegetables. Repeat the layers with the remaining vegetables, beef, and provolone cheese.
Sprinkle the shredded mozzarella cheese evenly over the top of the casserole.
6 – Bake the Casserole:
Cover the baking dish with aluminum foil and bake in the preheated oven for 20 minutes.
After 20 minutes, remove the foil and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly and the casserole is heated through.
7 – Serve and Enjoy:
Once baked, remove the Philly Cheese Steak Casserole from the oven and let it cool for a few minutes before serving.
Cut into squares and serve hot, garnished with chopped fresh parsley if desired.
With its tender beef, savory sautéed vegetables, and gooey melted cheese, Philly Cheese Steak Casserole is a comforting and satisfying dish that is perfect for any occasion. Whether enjoyed as a hearty dinner or served at a gathering with friends and family, this flavorful casserole is sure to be a hit. By following this easy recipe, you can recreate the classic flavors of the beloved Philly cheese steak sandwich in a convenient and delicious casserole form. So, gather your ingredients, preheat your oven, and get ready to indulge in the irresistible goodness of Philly Cheese Steak Casserole
