
Philly Cheese Steak Casserole is pure weeknight comfort food. Packed with tender beef, peppers, onions, and just the right amount of gooey Provolone cheese, everything bakes up into an irresistibly creamy casserole. It is perfect for when you want all the steakhouse flavors in one quick and easy family meal.
I first tried this when my kids begged for Philly cheesesteaks after a baseball game. Baking it as a casserole made it so much easier and now it is one of our cozy dinner traditions.
Ingredients
- Lean ground beef: for hearty flavor and easy cooking Use eighty five percent or leaner so you get all the meaty taste without too much grease
- Bell peppers: for sweetness and crunch Any color works so choose the brightest and freshest at the store
- Yellow onion: brings that classic cheesesteak aroma Look for a firm onion with no soft spots
- Garlic: for depth and extra savoriness Fresh always makes a difference if you can
- Seasoned salt: for punchy flavor The right blend of spices is key so pick a brand you love
- Provolone cheese: for that signature melt Look for deli slices with a pale creamy color
- Large eggs: create a silky custard base Use fresh eggs for the best texture
- Heavy cream: ties the casserole together with richness Choose one that is thick and fresh
- Hot sauce: is optional but adds a gentle kick Go for your favorite brand or leave it out for a mild dish
- Worcestershire sauce: for that savory umami lift Look for one where anchovies are high up the ingredient list for a bold taste
Step by Step Instructions
- Prep and Preheat:
- Set your oven to three hundred fifty degrees Fahrenheit and coat a nine inch square baking dish with nonstick spray to keep things from sticking later
- Brown the Beef:
- In a large skillet over medium heat crumble and cook the ground beef until browned through breaking up clumps as you go This usually takes about six to eight minutes Drain off any extra fat to avoid a greasy casserole
- Cook Vegetables and Aromatics:
- Add the diced bell peppers onions and minced garlic to the cooked beef Stir and sauté for about five minutes until the veggies are soft but not mushy You want them tender with a bit of snap left
- Season the Mixture:
- Sprinkle in your seasoned salt and stir well Taste a pinch and adjust if you like it saltier
- Layer into the Dish:
- Spoon the beef and vegetable mixture evenly into your greased baking dish Spread it out to cover the bottom Then carefully layer the slices of Provolone over the top so each bite has cheesy goodness
- Mix the Custard Base:
- In a medium bowl whisk together the eggs the heavy cream the Worcestershire sauce and hot sauce if using Beat until smooth and pale yellow so the eggs are fully broken up and everything is frothy
- Pour and Bake:
- Slowly pour the egg and cream mixture over the beef and cheese in the baking dish Pour all around the edges too to get even pockets of custardy texture Bake in the oven for twenty to twenty five minutes until the eggs are set in the middle and the cheese is melted and golden
- Cool and Serve:
- Let the casserole cool for a few minutes after baking so it holds together when sliced Serve straight from the dish while warm and melty

I love the oozy layer of Provolone on top It always reminds me of the first time I made this casserole for my family and everyone came back for seconds Right away it became the go to dinner for my husband after a long day.
Storage Tips
Let leftovers cool completely before covering tightly and refrigerating They stay good for up to three days Reheat individual portions in the microwave or warm the whole dish gently in a low oven until hot
Ingredient Substitutions
Swap ground beef for ground turkey or chicken for a lighter version If you want extra richness try adding a little cream cheese blended into the egg mixture You can also use Swiss or mozzarella slices if you are out of Provolone
Serving Suggestions
Serve hot with a crisp green salad or roasted vegetables Add some crusty bread if you want a nod to the classic Philly sandwich This casserole makes great leftovers tucked into a warmed pita for lunch the next day

Cultural Context
A classic Philly cheese steak is made to order on the griddle but sometimes you just need a shortcut Casserole style brings all those peppery cheesy flavors together in one simple bake It is a busy night hero for anyone craving nostalgia
Commonly Asked Questions
- → What type of beef works best?
Lean ground beef is ideal for a tender, flavorful base without excess grease. You can use 80/20 or 90/10 blends.
- → Can I use a different cheese?
Provolone is traditional for its melt and flavor, but mozzarella or Monterey Jack are great substitutes for variety.
- → How do I store leftovers?
Allow to cool, then refrigerate in an airtight container for up to three days. Reheat in the oven or microwave.
- → Is it possible to make this dish ahead?
Yes, you can assemble everything in advance, cover, and refrigerate. Bake when ready to serve for convenience.
- → Can I add other vegetables?
Absolutely. Try mushrooms, fresh spinach, or jalapeños for added flavor and nutrition.