Embrace the hearty flavors of a classic dish with our amazing Philly Cheese Steak Casserole. This comforting recipe brings all the savory goodness of a traditional Philly Cheese Steak into a convenient casserole form, perfect for family dinners or impressive gatherings. Discover how easily you can transform simple ingredients into a delicious masterpiece without compromising on taste or authenticity. With every bite, you’ll savor the tender beef, gooey cheese, and harmonious blend of peppers and onions that make this dish a true staple.
Growing up, my grandmother used to make a version of this dish every family gathering, and it quickly became a favorite that we always looked forward to. Back then, she didn’t call it a casserole, but a ‘baked delight.’ Watching her prepare it with care and enthusiasm made me appreciate not only the dish itself but the joy of cooking for others. The recipe has evolved over time in our family, keeping the essence of her culinary magic alive, yet making it suitable for the modern palate.
Why You’ll Love This Recipe
This Philly Cheese Steak Casserole is a fusion of comfort and convenience. First, its rich, savory flavors mimic those of a classic cheese steak sandwich, served in a warming, easy-to-serve casserole format. It’s a practical choice for busy weeknights or potlucks because it can be made ahead of time and baked when needed. Plus, it provides the perfect blend of protein and veggies, offering a balanced meal that doesn’t skimp on flavor. The versatility of this dish also means you can play around with the ingredients to suit dietary preferences or what you have in the pantry.
Ingredients Notes
Selecting the best ingredients elevates the dish to new heights. Use thinly sliced rib-eye steak for its tenderness and flavor, but sirloin or flank steak can be good alternatives. Green and red bell peppers add color and sweetness, though you can substitute with other types or add spicy peppers for heat. Mozzarella and provolone cheese are classic choices, but feel free to mix in some cheddar for a sharper taste. Ensure the onions and peppers are evenly sliced for uniform cooking. Cooking spray can prevent sticking and helps in getting an even crust when baking the casserole.
Recipe Steps
Step 1
Start by preheating your oven to 350°F (175°C). Meanwhile, in a large skillet, heat a tablespoon of oil over medium-high heat. Add the thinly sliced beef and cook until it begins to brown. Stir occasionally to ensure even cooking. Once cooked, drain any excess fat and set aside the beef on a paper towel to remove excess oil.
Step 2
Using the same skillet, add a little more oil if needed, and sauté the sliced onions and bell peppers. Cook until they are tender and slightly caramelized, enhancing their sweetness. Season lightly with salt and Black Pepper to taste. Combining them with minced garlic towards the end can boost the dish’s aromatic profile.
Step 3
In a large mixing bowl, combine the cooked beef, sautéed vegetables, and shredded cheese. Ensure everything is well mixed for uniform flavor distribution. You can also add a few tablespoons of beef broth to enhance the overall juiciness of the casserole.
Step 4
Lightly grease a casserole dish with cooking spray and spread the beef and vegetable mixture evenly. Sprinkle a layer of cheese over the top for a golden, cheesy crust. Cover the dish with aluminum foil to prevent the cheese from burning and bake in the preheated oven for about 20-25 minutes.
Step 5
Remove the foil and bake for an additional 10 minutes to allow the cheese to melt completely and turn golden brown. Once baked, remove from oven and let it cool a bit before serving. This helps the flavors meld together, enhancing every savory bite.
Storage Options
To store leftovers, let the casserole cool completely before transferring it to an airtight container. Refrigerate for up to 3 days. For longer storage, consider freezing the casserole, either whole or in portioned pieces. Wrap them tightly with plastic wrap before freezing to prevent freezer burn. To reheat, thaw overnight in the fridge and bake at 350°F until heated through, about 20-30 minutes.
Variations & Substitutions
If you’re looking for a lower-carb version, substitute the beef with ground turkey or chicken. For a vegetarian option, replace the meat with hearty mushrooms or eggplant slices. Using gluten-free breadcrumbs instead of regular ones is an easy way to adjust the recipe for those with gluten sensitivities. Consider adding other vegetables like sliced mushrooms, jalapeños, or spinach for additional nutrition and flavor.
Serving Suggestions
This casserole pairs wonderfully with a crisp green salad on the side for a refreshing contrast to its richness. Accompany it with crusty bread or garlic knots for an extra touch of indulgence. It’s a standout dish at family gatherings, game nights, or on a cozy weekend dinner. Perfect with a glass of robust Red Wine or your favorite amber beer.
Frequently Asked Questions
Can I prepare this casserole in advance? Absolutely! You can assemble the casserole a day before, cover it with foil, and store it in the refrigerator. Simply bake it when ready to serve, adding an extra 10-15 minutes to the baking time to account for the chilled casserole.
What can I serve with this casserole? This dish is quite versatile in its pairings. Serve it with a fresh green salad and some Crusty Bread or garlic toast. Roasted or steamed vegetables also complement the casserole well, adding a balance to the hearty meal.
What’s a good vegetarian substitution for the beef? If you’re looking to make it vegetarian, hearty mushrooms or eggplant can be wonderful substitutes. They provide a similar texture and richness. For added protein, consider including seasoned tofu or tempeh.
Is it possible to make this dish spicier? Yes, for those who enjoy heat, you can add sliced jalapeños or a sprinkle of red pepper flakes to the casserole. Using pepper jack cheese instead of mozzarella can also add a spicy kick.
Whether you’re hosting a gathering or planning a weekly menu, this dish offers satisfaction and ease for your culinary needs. Its savory delight and simple preparation will make it a cherished recipe in your repertoire, just as it became in ours, reminding us of cherished family gatherings and grand meal memories.

Philly Cheese Steak Casserole
Ingredients
Main Ingredients
- 1.5 pounds ribeye steak, thinly sliced or substitute with any preferred cut
- 1 large green bell pepper sliced
- 1 large onion sliced
- 8 ounces mushrooms sliced
- 2 cups shredded provolone cheese
- 4 cups cooked white rice or substitute with quinoa
- 2 tablespoons olive oil
- 1 teaspoon salt to taste
- 1 teaspoon black pepper to taste
Instructions
Preparation Steps
- Preheat your oven to 350°F (175°C).
- In a large skillet, heat olive oil over medium-high heat. Sauté the onions, bell peppers, and mushrooms until softened, about 5 minutes.
- Add the thinly sliced steak to the skillet and cook until browned.
- Season with salt and black pepper, then remove from heat.
- In a 9x13 inch baking dish, layer the cooked white rice, steak mixture, and shredded provolone cheese.
- Bake in the preheated oven for 20-25 minutes until the cheese is melted and bubbly.