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This Philly cheesesteak skillet with peppers has 47 g of protein per serving and takes 50 minutes, with 20 of those spent chilling the beef in the freezer. The protein comes from top sirloin and provolone, not powder, so it tastes like the real thing.
The recipe makes 4 servings, and each one is about 325 g of cooked food: roughly 115 g of sirloin, a pile of browned peppers, onion and mushrooms, and a layer of melted cheese. I skip the roll in the pan, which keeps it a fork meal.
The trade-off is the slicing. The beef needs to be about 3 mm thin or it turns chewy in the short sear, so you want a sharp knife and a steak that’s firm from the freezer.
Everything cooks in one 30 cm / 12-inch cast-iron skillet, and the stove time is about 20 minutes.
Why You’ll Love This Recipe
- 47 g protein per serving from beef and cheese, no powder
- One 12-inch skillet and about 20 minutes at the stove
- Works with a fork or tucked into a toasted roll
- Leftovers reheat in a skillet in about 6 minutes
Ingredient Notes
- top sirloin steak: Sirloin gives about 21 g protein per 100 g raw and costs less than ribeye. Ribeye works too, but it’s fattier and adds roughly 100 calories per serving.
- provolone: Deli-sliced mild provolone melts evenly. White American cheese is a softer, meltier swap with slightly less protein.
- cremini mushrooms: They add weight and a savory edge to the pan. Leave them out if you don’t like them, and add an extra half onion to keep the volume.
- Worcestershire sauce and beef broth: Together they make a quick pan sauce that lifts the browned bits. Use low-sodium broth if you want to control the salt.

Philly Cheesesteak Skillet with Peppers and Provolone
Ingredients
Method
- Trim visible fat from the sirloin and freeze it on a plate for 20 minutes, until firm but not frozen solid. While it chills, slice the bell peppers into 6 mm strips, the onion into half-moons and the mushrooms 5 mm thick, and mince the garlic.
- Slice the firm beef against the grain as thin as you can, about 3 mm. Toss the slices with 1/2 tsp of the salt and the black pepper.
- Heat 1 tbsp of the oil in a 30 cm / 12-inch cast-iron skillet over medium-high heat for 2 minutes, until it shimmers. Sear half the beef in a single layer for 1 to 2 minutes, stirring once, until browned with no pink left. Move it to a plate, then sear the second half the same way.
- Add the remaining 1 tbsp oil to the skillet, then the onion, peppers and the remaining 1/4 tsp salt. Cook for 4 minutes, stirring every minute, then add the mushrooms and cook 5 minutes more. The pile will shrink by about half. Stop when the onions are soft and browned in spots and the mushroom liquid has cooked off, then stir in the garlic for 30 seconds.
- Pour in the Worcestershire sauce and broth and scrape up the browned bits for 1 minute, until the liquid has reduced by half. Return the beef and its juices to the pan and stir for 1 minute over medium-low heat. Overlap the provolone slices across the top, cover with a lid or foil for 2 minutes until melted, and serve from the pan.
Notes
- Slice the beef while it's still firm from the freezer, not after it thaws.
- Sear the beef in two batches so the 30 cm skillet stays hot.
- Cover the skillet for 2 minutes after adding provolone so it melts through.
- Wipe mushrooms with a damp paper towel instead of rinsing them.

Tips for Success
- Freeze the sirloin for 20 minutes before slicing so the knife glides through and you get 3 mm slices instead of ragged chunks.
- Preheat the cast-iron skillet for a full 2 minutes before the beef goes in, or the slices steam and turn gray instead of browning.
- Cook the mushrooms until the pan looks dry again, about 5 minutes, since leftover liquid will water down the cheese layer.
- Cut provolone slices in half and overlap them so every spoonful gets cheese, then cover for 2 minutes without stirring.
- Salt the beef right before it hits the pan, not earlier, so it sears instead of sitting in its own juices.
Variations
- Swap the provolone for white American cheese slices for a milder, meltier result closer to a sandwich shop version.
- Add 2 tbsp sliced pickled cherry peppers with the garlic for heat and a vinegar bite that cuts the provolone.
- Use ribeye in place of sirloin for a juicier pan, and expect about 4 g less protein per serving.
Storage and Reheating
Philly cheesesteak skillet keeps 3 to 4 days in an airtight container in the fridge. Cool it within 2 hours of cooking before it goes in.
Reheat it in a 26 cm / 10-inch skillet over medium heat for 5 to 6 minutes with 1 tbsp beef broth, stirring once, until steaming hot. The microwave works at 70 percent power for 2 to 3 minutes, though the beef gets slightly firmer.
It freezes for up to 2 months. I portion it into flat freezer bags and keep them in the chest freezer in the garage, then thaw them overnight in the fridge before reheating.
Serving Suggestions
Philly cheesesteak skillet is built for forks, with the pan juices spooned over each portion. If you want the sandwich, a toasted 90 g hoagie roll adds about 250 calories and 8 g protein.
Roasted potato wedges, coleslaw or a green salad with a sharp vinegar dressing all balance the richness of the provolone.
For a crowd, set the skillet on the table with rolls, pickled peppers and hot sauce and let everyone build their own.

FAQ
Why is my Philly cheesesteak skillet beef tough and gray?
Tough, gray beef means the slices were too thick, the pan wasn’t hot enough, or too much meat went in at once. Slice the sirloin 3 mm thin after 20 minutes in the freezer, preheat the 30 cm / 12-inch skillet for 2 minutes, and sear in two batches, 1 to 2 minutes each, until browned with no pink left.
Can I use ribeye instead of sirloin in a Philly cheesesteak skillet?
Yes, ribeye is the classic cheesesteak cut and gives a juicier, fattier pan. Use the same 600 g, sliced 3 mm thin, and expect about 4 g less protein per serving and roughly 100 more calories, since ribeye is fattier. That’s a fair trade if you want diner-style texture.
Can I freeze Philly cheesesteak skillet with the provolone already melted on top?
Yes, it freezes for up to 2 months in flat freezer bags or containers. Thaw overnight in the fridge, then reheat in a 26 cm / 10-inch skillet over medium heat for 5 to 6 minutes with 1 tbsp beef broth. The cheese turns a little grainy but still melts back into the beef.
What goes with Philly cheesesteak skillet if I skip the hoagie roll?
Roasted potato wedges, a vinegar-dressed green salad, or coleslaw all work, since they cut the richness of the provolone. If you want the sandwich feel, a toasted 90 g hoagie roll adds about 250 calories and 8 g protein per serving. Cauliflower rice works for a lower-carb plate.
Is Philly cheesesteak skillet gluten free?
The pan itself has no wheat ingredients, so it’s gluten-free without the roll, but check the labels on your Worcestershire sauce and beef broth since some brands contain gluten. Serve it over potatoes or rice instead of a hoagie roll. Provolone and sirloin are naturally gluten-free.
What’s the difference between a Philly cheesesteak skillet and a classic Philly cheesesteak?
A classic Philly cheesesteak is thin ribeye, fried onions and melted cheese on a long roll, usually provolone, American or Cheez Whiz. This skillet uses sirloin, adds bell peppers and mushrooms, and skips the roll, so you eat it with a fork and get about 47 g protein per serving.

