Low Carb Philly Cheesesteak Casserole: 37g Protein

By Annette

Low Carb Philly Cheesesteak Casserole: 37g Protein

You want the philly cheesesteak. You do not want the roll, the grease, or the 3pm crash that comes with it.

That craving is real, and it deserves a better answer than a sad lettuce wrap.

So here it is: all the steak-and-melty-cheese comfort, baked into one dish, with 37 grams of protein a serving and almost no carbs in sight.

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[PHOTO/DIAGRAM NEEDED: overhead hero of a bubbling cheesesteak casserole in a cast iron skillet, browned strips of beef, colorful bell peppers and mushrooms peeking through golden broiled provolone, a spoon lifting one cheesy portion, fresh parsley scattered, bright natural daylight, clean light surface. Free-image search: “philly cheesesteak casserole skillet overhead.” AI prompt: “Overhead photo of a low carb philly cheesesteak casserole in a cast iron skillet, browned thin-sliced beef with bell peppers and mushrooms under golden broiled provolone cheese, a serving spoon lifting a cheesy portion, fresh parsley garnish, bright natural daylight, clean light kitchen surface, cheerful fresh food photography, no text.”]

đź“Š The Macros

🥩 PROTEIN: 37g

Calories 470 · Carbs 7g · Fat 33g · Fiber 2g Protein density: 7.9g protein per 100 calories Serves 6 · about 45 min · one-pan keto comfort

This is a true cheesesteak dinner that hands you 37 grams of protein and keeps the whole thing under 10 carbs.

The classic sandwich version buries the steak under a roll and still limps in around 20g. Drop the bread, lean on the beef and two real cheeses, and you nearly double the protein while the carbs fall off a cliff.

🍳 The Recipe

Low Carb Philly Cheesesteak Casserole. Serves 6. About 20 minutes at the stove, then 15 in the oven.

One skillet does it all. Brown the beef, soften the veg, melt in a creamy base, blanket it with provolone, and bake.

Ingredients

  • 2 lb thinly sliced beef (sirloin or ribeye, the protein anchor)
  • 1 tablespoon olive oil
  • 1 small onion, sliced
  • 2 bell peppers, sliced
  • 2 cups button or baby bella mushrooms, sliced
  • 2 cups shredded provolone (the melty crown)
  • 4 oz cream cheese (the creamy backbone)
  • 1/2 cup beef broth
  • 1 teaspoon Worcestershire sauce
  • 1 teaspoon garlic salt
  • 1/2 teaspoon ground black pepper

Method

  1. Heat oven to 350°F. In a large ovenproof skillet, heat the olive oil over medium-high.
  2. Add the beef, garlic salt, and pepper. Cook until browned, then remove and set aside, leaving about 2 tablespoons of fat in the pan.
  3. Add the bell peppers, onion, and mushrooms. Cook until softened.
  4. Stir in the Worcestershire, beef broth, and cream cheese. Heat until the cream cheese melts into a sauce.
  5. Return the beef to the pan and stir to combine. (Transfer to a 9x13 dish if your skillet is not ovenproof.)
  6. Top with the provolone. Bake 15 minutes, then broil 2 to 3 minutes if you like the cheese crisp. Garnish with parsley.

Make-ahead: this reheats beautifully. Portion into 6 containers and refrigerate up to 4 days, or freeze and thaw overnight.

[GIF PLACEHOLDER: warm “this is the cheesesteak I actually want” energy, cheese pulling up off a spoonful of casserole]

Cooking this? Reply and tell me whether you broiled the top. I read every single reply.

🔄 The Swap

Skip the roll entirely and let the steak be the star. That one move takes the cheesesteak from about 20g of protein to 37g a serving, and it cuts the carbs to almost nothing.

The bread was never the good part. With the roll gone, the two cups of provolone and the cream cheese carry all the richness, and the beef finally gets to lead.

Want to push past 40g? Stir an extra cup of shredded provolone into the base before it bakes. It disappears into the sauce and lifts every serving.

🔬 The Science

Why does a beef-and-cheese dinner like this work so well in midlife?

Beef is one of the most complete protein sources on your plate. It carries all nine essential amino acids in the ratios your muscle actually uses, no pairing or planning required.

Muscle keeps best with a real dose at each meal. After about 35, the body gets less efficient at turning the protein you eat into the muscle you keep. The fix is a meaningful hit per meal, roughly 25 to 30g, and a 37g dinner clears that bar with room to spare.

Low carb plus high protein steadies the afternoon. Without the roll spiking your blood sugar, you get even energy instead of the post-sandwich slump.

“The cheesesteak was never about the bread. Drop the roll, keep the steak and the cheese, and you almost double the protein.” [QUOTABLE]

đź’ˇ The Takeaway

One skillet, two cheeses, no bread, and 37 grams of protein. That’s a cheesesteak that actually loves you back.

Make it once and you have six servings of comfort food that hold you for hours instead of leaving you foraging by mid-afternoon.

Send this to someone who orders the cheesesteak every time and feels wrecked an hour later. This is the version she’s been missing.

Want a whole week built like this? I did the planning so you don’t have to.

Download the free 7-Day 120g-Protein Meal Plan → Seven days of meals and snacks, every day hitting 120g of protein, with a full grocery list and honest macros on every plate.

Written by Annette. Real food, honest macros, not medical advice.

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