Philly Cheesesteak Casserole
Philly Cheesesteak Casserole takes all the bold, savory flavors of your favorite sandwich and transforms them into a cozy, family-style bake you’ll crave all week long.
This hearty dinner recipe is loaded with tender beef, melty cheese, and caramelized onions—all layered together in one comforting dish that’s easy enough for busy weeknights yet satisfying enough to impress guests.
If you love classic comfort food with a twist, this casserole delivers that iconic Philly flavor without the fuss of grilling sandwiches.
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How to Make a Philly Cheesesteak Casserole
- Start by sautéing sliced green peppers and diced onions in olive oil until they’re soft and lightly caramelized to bring out their natural sweetness.
- Add thinly sliced beef, mushrooms, and seasonings, cooking until the meat is browned and tender.
- Stir in beef bouillon cubes and let it simmer briefly, then top the mixture with provolone cheese.
- Bake at 350°F for about 15 minutes until the cheese is melted and bubbly.
- Serve it straight from the skillet or spoon onto steak rolls for sandwiches.
- Store leftovers in an airtight container, and feel free to customize with different cheeses or extra seasonings for your own flavorful twist.
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Kitchen Tip: Thinly sliced ribeye or sirloin gives the best flavor and tenderness for this casserole. If you can’t find pre-sliced steak, freeze it for 30 minutes before slicing for thinner, even cuts.
Make ahead: Assemble the casserole up to a day in advance and refrigerate. Bake when ready to serve for an easy, no-fuss dinner.
What to Serve with Philly Cheesesteak Casserole
The right side dish recipes can turn this into a complete, crowd-pleasing meal. Since it’s rich, cheesy, and savory, it pairs best with lighter, crisp sides and simple comfort foods that balance the flavors.
- A crisp Garden or Caesar Salad adds freshness and crunch.
- Keep the steakhouse vibe going with crispy roasted potatoes or seasoned fries.
- Steamed or Roasted Veggies like broccoli, asparagus, or green beans add color and nutrition.
Provolone, since it melts smoothly and has that signature mild, slightly tangy flavor you’d find in a traditional Philly cheesesteak. For a creamier, more indulgent option, try a mix of provolone and mozzarella. If you like a little kick, pepper jack or white American cheese work great too. Ultimately, any cheese that melts well—like Swiss, cheddar, or Monterey Jack—can be used depending on your taste preferences.
Yes! Ground beef is a budget-friendly option that still delivers great flavor. Just cook and drain it before assembling the casserole.
Absolutely. Let it cool completely, then wrap tightly in foil or store in an airtight container. Freeze for up to 2 months and reheat in the oven until hot.
Looking for more delicious ideas to try after making this casserole? You’ll love these easy recipes and helpful kitchen tips!
- Find more hearty and flavorful beef recipes perfect for weeknight dinners or weekend comfort meals.
- Learn simple, effective tricks for how to clean a glass baking dish and keep it sparkling after every meal.
Philly Cheesesteak Casserole Recipe
Ingredients
- 1 tablespoon olive oil
- 2 lbs thinly sliced beef
- 1 sliced green bell peppers
- 1 yellow onion
- 8 oz mushrooms sliced
- 1 tsp garlic
- Salt and pepper to taste
- 2 beef bouillon cubes
- 8 slices provolone cheese slices
- Steak rolls optional
Instructions
- Dice the onion and slice bell pepper into ½ inch strips.
- Preheat the oven to 350 degrees.
- Heat the olive oil in a large oven-safe skillet over medium heat.
- Cook green peppers and diced onions until soft and translucent.
- Add the steak slices, mushrooms, and seasonings too sauteed peppers.
- Cook over medium heat until the meat is done and vegetables are tender.
- Drain excess grease.
- Add the beef bouillon cubes, and simmer over low heat for 5 minutes.
- Add provolone cheese to the top of the casserole and transfer the skillet to the oven for 15 minutes until the cheese melts.
- Serve as is or as a sandwich on a steak roll.
- Serve leftover casserole in an airtight container.