Keto Philly Cheesesteak Skillet
A rich, cheesy, one-pan dinner inspired by the classic flavors of a traditional Philly cheesesteak—without the bread. This low-carb skillet is packed with tender beef, sautéed peppers and onions, and melty cheese, making it perfect for weeknight dinners, meal prep, or satisfying keto comfort food cravings.
🕒 Recipe Overview
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Prep Time: 15 minutes
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Cook Time: 20 minutes
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Total Time: 35 minutes
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Servings: 4
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Net Carbs: ~6g per serving
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Difficulty: Easy
🛒 Ingredients
For the Skillet:
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1½ lbs thinly sliced beef (ribeye, sirloin, or shaved steak)
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1 tablespoon olive oil or avocado oil
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1 tablespoon butter
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1 large green bell pepper, thinly sliced
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1 medium red bell pepper, thinly sliced
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1 medium onion, thinly sliced
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3 cloves garlic, minced
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8 oz mushrooms, sliced (optional but recommended)
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1 teaspoon Worcestershire sauce (check for low-carb)
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½ teaspoon sea salt (adjust to taste)
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½ teaspoon black pepper
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½ teaspoon smoked paprika
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½ teaspoon Italian seasoning
For the Cheese Topping:
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6–8 slices provolone cheese
OR -
1 cup shredded mozzarella
OR -
½ cup cream cheese + ½ cup shredded provolone (for extra creaminess)
🔪 Step-by-Step Instructions
1️⃣ Prepare the Ingredients
Slice your peppers and onions thinly for authentic texture. If your beef isn’t pre-sliced, place it in the freezer for 20–30 minutes first—this makes thin slicing much easier.
2️⃣ Sauté the Vegetables
Heat olive oil and butter in a large skillet over medium heat.
Add onions and peppers first. Cook for 5–7 minutes until softened and slightly caramelized.
Add mushrooms and cook another 3–4 minutes until tender.
Stir in garlic and cook for 30 seconds until fragrant.
Remove vegetables from the skillet and set aside.
3️⃣ Cook the Beef
In the same skillet, increase heat to medium-high.
Add the sliced beef in a single layer (work in batches if needed to avoid overcrowding).
Season with salt, pepper, smoked paprika, and Italian seasoning.
Cook for 2–4 minutes until browned but still tender. Avoid overcooking—it cooks quickly!
4️⃣ Combine Everything
Return the sautéed vegetables to the skillet.
Drizzle Worcestershire sauce over the mixture and stir well.
Let everything cook together for 2–3 minutes so flavors meld.
5️⃣ Add the Cheese
Lower heat to medium-low.
Lay provolone slices over the top and cover the skillet with a lid for 2–3 minutes until melted.
If using shredded cheese, sprinkle evenly and cover until bubbly and gooey.
6️⃣ Serve
Serve hot straight from the skillet.
🥑 Serving Ideas (Keto-Friendly)
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Over cauliflower rice
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Stuffed into lettuce wraps
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In low-carb tortillas
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With roasted cauliflower or zucchini
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Topped with sliced avocado
🔥 Pro Tips for the Best Flavor
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Use ribeye if possible—it’s the most authentic and flavorful.
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Don’t overcrowd the pan or the beef will steam instead of sear.
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Add a splash of beef broth if you want a slightly saucier version.
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For a creamy skillet version, stir in 2 tablespoons heavy cream before adding cheese.
🧊 Storage & Meal Prep
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Refrigerator: Store in airtight container for up to 4 days.
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Freezer: Freeze for up to 2 months (best without cheese topping).
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Reheat: Warm in skillet over medium heat or microwave in 30-second intervals.
This recipe reheats beautifully, making it perfect for keto meal prep.
📊 Nutrition (Approx. Per Serving)
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Calories: 420
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Fat: 32g
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Protein: 30g
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Total Carbs: 8g
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Fiber: 2g
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Net Carbs: 6g
