Indulge in the rich, savory flavors of a classic Philly cheesesteak without the carbs. This Low Carb Philly Cheesesteak Casserole captures the essence of tender steak, sautéed peppers and onions, and melty cheeses all baked into one hearty dish perfect for a satisfying dinner.
The creamy cream cheese blended with Worcestershire sauce creates a luscious sauce that coats the beef and vegetables, while layers of provolone and mozzarella add an irresistible cheesy topping. Ready in under an hour, this casserole is perfect for busy weeknights or meal prepping with comforting, familiar flavors that fit a low carb lifestyle.
- Captures traditional Philly cheesesteak flavors without the bread or carbs.
- Richly creamy texture with flavorful cheeses and a savory beef veggie base.
- Simple one-dish meal ideal for busy weeknights or batch cooking.
Ingredients
- Ground Beef (2 lbs, 80/20): High fat content beef ensures juicy, flavorful meat base for the casserole.
- Large Onion (1, diced): Adds sweetness and depth with caramelized flavor when sautéed.
- Bell Peppers (2 large, diced): Provides color, crunch, and a subtle sweetness that balances the savory meat.
- Garlic Cloves (2, minced): Infuses aromatic pungency and enhances overall flavor complexity.
- Cream Cheese (8 oz, softened): Creates creamy, rich texture that melds ingredients and adds tang.
- Worcestershire Sauce (2 tbsp): Adds umami and a subtle tang to deepen meat flavor.
- Salt and Pepper (to taste): Essential seasonings for enhancing the natural flavors of the beef and veggies.
- Provolone Cheese (8 oz, sliced): Mild, melty cheese layered for authentic cheesesteak taste and texture.
- Mozzarella Cheese (1.5 cups, shredded): Provides gooey, stretchy cheese topping with a light milky flavor.
- Olive Oil (1 tbsp): Used to sauté vegetables, imparting richness without overpowering flavors.
Instructions
- Preheat and Prepare Baking Dish
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Set your oven to 350°F (175°C) and coat a 9×13 baking dish with non-stick spray. This initial step ensures your casserole will bake evenly and not stick, making cleanup easier.
- Sauté Onions and Bell Peppers
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Heat olive oil in a large skillet over medium heat. Add diced onions and bell peppers, cooking for 5-6 minutes until they soften and become fragrant. This step caramelizes the vegetables, enhancing sweetness and balancing the richness of the beef.
- Add Garlic and Cook Briefly
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Stir in minced garlic and cook for about 30 seconds, stirring constantly to prevent burning. Garlic releases its aromatic oils quickly, adding depth without bitterness.
- Brown the Ground Beef
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Add ground beef to the skillet and break it apart with a spatula. Season liberally with salt and pepper. Cook for 7-8 minutes until fully browned with no pink remaining. Browning builds complex savory flavors through the Maillard reaction.
- Incorporate Worcestershire Sauce and Cream Cheese
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Drain any excess fat if necessary, then stir in Worcestershire sauce to enhance umami flavors. Lower heat and add softened cream cheese, stirring continuously until melted and fully blended into a creamy sauce coating the beef mixture.
- Assemble the Casserole Layers
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Pour the beef mixture evenly into the prepared baking dish, spreading it flat. Layer torn provolone slices on top, ensuring even coverage. Then sprinkle shredded mozzarella as the final cheesy layer for melting and stretchiness.
- Bake Until Cheese is Bubbly and Golden
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Place the casserole in the oven and bake for 22-25 minutes until cheese melts fully, bubbles up, and starts turning lightly golden. This baking step melds flavors and textures beautifully.
- Let the Dish Rest Before Serving
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Remove from oven and let the casserole rest for 5 minutes. This helps the dish set and allows flavors to fully integrate, making it easier to serve and more satisfying to eat.
- Using high-fat beef keeps the casserole juicy; drain excess grease before baking for best texture.
- Feel free to swap provolone with cheddar or American cheese for flavor variations.
- This casserole is freezer-friendly—perfect for meal prep or making ahead.
Storage Tips
Store leftovers covered in an airtight container in the refrigerator for up to 4 days. To reheat, warm in the oven or microwave until heated through, preserving the cheesy texture.
Serving Suggestions
This casserole pairs well with a crisp green salad or steamed low-carb vegetables. Add a side of pickles or hot sauce to enhance the traditional Philly cheesesteak experience.
- Allow cream cheese to soften fully before mixing to avoid lumps and ensure smooth integration.
- Toast the baking dish lightly before assembling to prevent sticking and improve flavor.
- Use freshly shredded mozzarella for better melting and texture than pre-shredded cheese.
FAQs
- Can I use steak strips instead of ground beef?
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Yes, sliced steak can be used for a more traditional cheesesteak texture, but cooking times may vary. Sear steak strips until browned and tender before mixing with other ingredients.
- Is this casserole suitable for keto diets?
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Absolutely! This recipe is low in carbohydrates and high in fats and protein, making it an excellent keto-friendly meal option.
- Can I prepare this casserole ahead of time?
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Yes, you can assemble the casserole the night before and refrigerate it. Bake it fresh when ready to serve to keep the cheese topping melted and bubbly.
- What can I substitute for cream cheese?
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Neufchâtel cheese or mascarpone can be used as alternatives to cream cheese to maintain creaminess with slightly different flavors.
- Can I add other vegetables?
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Certainly! Mushrooms or sliced jalapeños can add extra flavor and texture, but keep in mind moisture content may affect your casserole consistency.
- How do I store leftovers?
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Store in airtight containers in the fridge up to 4 days or freeze for up to 2 months. Reheat thoroughly before serving.

Low Carb Philly Cheesesteak Casserole
Equipment
- 1 9x13 baking dish sprayed with non-stick spray
- 1 large skillet
- 1 oven
Ingredients
- 2 lbs ground beef 80/20 fat ratio preferred
- 1 large onion diced
- 2 large bell peppers diced (green, red, or mixed)
- 2 cloves garlic minced
- 8 oz cream cheese softened to room temperature
- 2 tbsp Worcestershire sauce
- Salt and pepper to taste
- 8 oz provolone cheese sliced
- 1.5 cups shredded mozzarella cheese
- 1 tbsp olive oil
Instructions
- Preheat oven to 350°F (175°C) and spray a 9×13 baking dish with non-stick spray.
- Heat olive oil in a large skillet over medium heat.
- Add diced onions and bell peppers to the skillet, cooking for 5-6 minutes until softened and fragrant.
- Add minced garlic and cook for 30 seconds, stirring constantly to avoid burning.
- Add ground beef, breaking it up with a spatula, season with salt and pepper, and cook for 7-8 minutes until browned with no pink.
- Drain excess fat if needed.
- Stir in Worcestershire sauce to coat the meat evenly.
- Reduce heat to low and add softened cream cheese, stirring until melted and creamy.
- Transfer meat mixture to prepared baking dish and spread evenly.
- Layer torn provolone cheese over the meat, then sprinkle shredded mozzarella on top.
- Bake for 22-25 minutes until cheese is melted, bubbly, and lightly golden.
- Let rest for 5 minutes before serving to allow flavors to meld.
Notes
- Use high-fat ground beef for juicier results.
- Drain excess fat before baking for better texture.
- Substitute cheddar cheese for different flavor profiles.