I make this Low Carb Philly Cheesesteak Casserole on busy weeknights when I want the bold flavors of a sandwich without the carbs or the fuss. It blends seasoned ground beef, sautéed peppers and onions, and creamy melted cheese into a single-bake dish that feels like a cozy takeout favorite. If you like skillet-style cheesesteaks, you might also enjoy a classic preparation like the authentic Blackstone Philly cheesesteak for a closer-to-the-sandwich experience.

Why you’ll love this dish

This casserole gives you the savory comforts of a Philly cheesesteak but in a low carb, family-friendly format. It comes together fast, uses a short ingredient list, and bakes into a melting, spoonable casserole that kids and adults both accept. Make it for a weeknight dinner, meal prep, or a hearty lunch that reheats well. It’s budget-friendly because it relies on ground beef instead of sliced steak and stretches well for leftovers.

Step-by-step overview

You will: sweat the peppers and onions, brown and season the ground beef, fold in softened cream cheese to form a rich binder, transfer to a baking dish, and finish with shredded cheddar in the oven until bubbly. Total active time is about 20 to 30 minutes, plus 20 minutes baking. Expect simple stovetop work and one baking pan for cleanup that is minimal.

What you’ll need

• 1 lb ground beef (80/20 or leaner, depending on preference)
• 1 bell pepper, diced (any color)
• 1 onion, diced (yellow or sweet onion works best)
• 8 oz cream cheese, softened
• 1 cup shredded cheddar cheese
• 1 tsp garlic powder
• 1 tsp onion powder
• Salt and pepper to taste
• Olive oil for cooking

Ingredient notes and substitutions: use Greek yogurt (2–3 tablespoons) to loosen the filling if you prefer a lighter texture. Swap cheddar for provolone or Monterey Jack for a milder, melty profile. If you want extra green vegetable, fold in a cup of baby spinach at the end — it will wilt into the hot mixture.

Directions to follow

1. Preheat the oven to 350°F (175°C).
2. Heat a skillet over medium and add a splash of olive oil. Cook diced onions and bell pepper until softened, about 5 minutes.
3. Add the ground beef to the skillet. Season with garlic powder, onion powder, salt, and pepper. Break up the meat and cook until browned and cooked through, about 6 to 8 minutes.
4. Remove the pan from heat. Stir in the softened cream cheese until the mixture is smooth and evenly combined. Taste and adjust seasoning.
5. Transfer the beef and vegetable mixture to a greased casserole dish and spread it evenly.
6. Sprinkle the shredded cheddar cheese over the top and place the dish in the preheated oven. Bake 20 to 25 minutes, until cheese is melted and bubbly and edges are lightly golden.
7. Let the casserole cool for 5 minutes before serving so it sets slightly.

Best ways to enjoy it

Serve scoops of the casserole on dinner plates or family-style in the baking dish. Pair it with a crisp green salad dressed in vinaigrette to cut through the richness, or spoon it over cauliflower rice for an extra low carb option. For a heartier meal, offer roasted vegetables, sautéed mushrooms, or garlic green beans on the side.

Storage and reheating tips

Cool leftovers to room temperature no more than two hours after cooking, then refrigerate in an airtight container for up to 3 to 4 days. To reheat, portion into an oven-safe dish and warm at 350°F until heated through, about 15 to 20 minutes, or microwave individual portions in 60 second bursts until hot. To freeze, place cooled casserole in a freezer-safe container for up to 3 months; thaw in the refrigerator overnight before reheating. Reheat until the internal temperature reaches 165°F for food safety.

Pro chef tips

• Soften the cream cheese at room temperature for easier incorporation and a silkier final texture.
• Drain excess fat after browning very fatty beef, then return the meat to the pan so the final casserole is not greasy.
• Dice the peppers and onions uniformly so they cook at the same rate.
• For extra melt and stretch, add a handful of shredded mozzarella to the cheddar topping.
• If you like more savory depth, sprinkle a half teaspoon of smoked paprika or a pinch of crushed red pepper into the meat while cooking.

Creative twists

• Italian twist: fold in a teaspoon of dried oregano and use provolone cheese, then top with chopped fresh basil before serving.
• Mushroom boost: sauté 8 ounces of sliced mushrooms with the onions and peppers for an earthy flavor.
• Turkey or bison swap: use ground turkey or bison for leaner protein, but add a tablespoon of olive oil when browning to prevent drying.
• Vegetarian version: replace meat with crumbled firm tofu or a plant-based crumble and increase seasoning to compensate.

Common questions

How long does this recipe take from start to finish?

Active stovetop time is roughly 20 to 30 minutes, plus 20 to 25 minutes baking, so plan about 50 to 60 minutes total from start to finish.

Can I make this ahead and bake later?

Yes. Prepare the filling, place it in the greased casserole dish, cover, and refrigerate for up to 24 hours. When ready, add the cheese on top and bake as directed, adding a few extra minutes if the casserole starts chilled.

Is this safe to freeze and reheat?

Absolutely. Freeze cooled casserole in a freezer-safe container for up to 3 months. Thaw in the refrigerator overnight and reheat in the oven until it reaches an internal temperature of 165°F.

What other cheeses work well if I do not have cheddar?

Provolone, Monterey Jack, Colby, or a mozzarella-cheddar blend all melt nicely and complement the flavors. Mixing cheeses can give better melt and flavor complexity.

Where can I find inspiration for a classic Philly cheesesteak technique?

If you want a skillet-to-sandwich technique to compare textures and flavors, check out this authentic Blackstone Philly cheesesteak for tips on slicing, searing, and melting in the pan.

Low Carb Philly Cheesesteak Casserole

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A savory low carb casserole that combines seasoned ground beef, sautéed peppers and onions, and creamy melted cheese, offering the bold flavors of a Philly cheesesteak.

• Prep Time: 30 minutes
• Cook Time: 25 minutes
• Total Time: 55 minutes
• Yield: 4 servings 1x
• Category: Main Course
• Method: Baking
• Cuisine: American
• Diet: Low Carb

Ingredients

Scale 1x2x3x

• 1 lb ground beef (80/20 or leaner)
• 1 bell pepper, diced
• 1 onion, diced
• 8 oz cream cheese, softened
• 1 cup shredded cheddar cheese
• 1 tsp garlic powder
• 1 tsp onion powder
• Salt and pepper to taste
• Olive oil for cooking

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Instructions

1. Preheat the oven to 350°F (175°C).
2. Heat a skillet over medium and add a splash of olive oil. Cook diced onions and bell pepper until softened, about 5 minutes.
3. Add the ground beef to the skillet. Season with garlic powder, onion powder, salt, and pepper. Break up the meat and cook until browned, about 6 to 8 minutes.
4. Remove the pan from heat. Stir in the softened cream cheese until smooth.
5. Transfer the mixture to a greased casserole dish and spread it evenly.
6. Sprinkle the shredded cheddar cheese over the top and place in the preheated oven. Bake for 20 to 25 minutes, until cheese is melted and bubbly.
7. Let the casserole cool for 5 minutes before serving.

Notes

Serve with a crisp green salad or over cauliflower rice for an extra low carb option. Store leftovers in an airtight container for up to 4 days.

Nutrition

• Serving Size: 1 serving
• Calories: 400
• Sugar: 3g
• Sodium: 450mg
• Fat: 28g
• Saturated Fat: 13g
• Unsaturated Fat: 12g
• Trans Fat: 0g
• Carbohydrates: 6g
• Fiber: 1g
• Protein: 30g
• Cholesterol: 80mg