Step 3: Cook the Beef
In the same skillet, increase the heat to medium-high. Add the thinly sliced beef in batches so it browns rather than steams.
Season with salt and black pepper. Cook for 3–4 minutes until just browned. Avoid overcooking; the beef will finish cooking in the oven.
Once done, return the sautéed vegetables to the skillet and stir to combine.
Step 4: Make the Creamy Mixture
In a medium bowl, mix together:
- Softened cream cheese
- Sour cream
- Worcestershire sauce
Stir until smooth and well blended. This layer adds richness and helps bind the casserole together.
Step 5: Assemble the Casserole
Spread the beef and vegetable mixture evenly into your prepared baking dish.
Dollop the cream cheese mixture across the top, then gently spread it to cover the meat layer evenly.
Lay provolone slices over the entire surface (or sprinkle shredded cheese evenly).
Step 6: Bake to Perfection
Place the casserole in the preheated oven and bake for 20–25 minutes, or until the cheese is melted, bubbly, and slightly golden.
If you prefer a more browned top, broil for 2–3 minutes at the end—just watch carefully to prevent burning.
Step 7: Rest and Serve
Remove from the oven and let the casserole rest for about 5 minutes. This helps it set slightly and makes serving easier.
Garnish with fresh parsley if desired.
Serving Suggestions
- Serve as-is for a low-carb meal
- Spoon over toasted hoagie rolls for a traditional-style sandwich
- Pair with garlic bread or a crisp green salad
- Add roasted potatoes on the side
Storage and Reheating
Refrigerator: Store in an airtight container for up to 4 days.
Freezer: Freeze for up to 2 months.
Reheating: Warm in the oven at 350°F until heated through, or microwave individual portions.
Final Thoughts
Philly Cheesesteak Casserole captures the bold spirit of the classic sandwich from Philadelphia while delivering the cozy comfort of a baked dish. It’s rich, cheesy, and deeply satisfying—perfect for busy weeknights or whenever you crave something hearty and flavorful.
Once you try it, this casserole might just become your new go-to comfort food favorite.
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