Low Carb Philly Cheesesteak Casserole

Looking for a hearty weeknight dinner that’s both comforting and low-carb? This Low Carb Philly Cheesesteak Casserole brings all the beloved flavors of the classic sandwich straight into a bubbling, cheesy bake—without the bread! The magic happens when you sauté savory ground beef with peppers, onions, and a luscious blend of cheeses, layering everything together until it’s golden and irresistible. Once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly, and watch as dinner turns into a drool-worthy, crowd-pleasing creation the whole family will love.

Ingredients You’ll Need

Every ingredient in this Low Carb Philly Cheesesteak Casserole recipe plays a starring role—from the tender ground beef to the melting cheeses, each item adds flavor, color, or texture that takes this dish over the top. Here’s what you need, plus a quick tip for each one!

• Ground beef: Choose 80/20 or leaner; the fat adds juiciness but you can drain excess if needed.
• Onion: Diced onion brings classic Philly cheesesteak sweetness and aroma.
• Bell peppers: Go for a mix of green and red for extra color and a mild, sweet crunch.
• Garlic: Just a little minced garlic lifts all the flavors and makes the kitchen smell amazing!
• Cream cheese: This is the secret to a creamy, decadent filling that holds everything together.
• Worcestershire sauce: A splash of umami to mimic the deep, savory notes of a good cheesesteak.
• Salt and pepper: Season to taste; a little goes a long way with quality beef and cheese!
• Provolone cheese: Sliced provolone melts flawlessly for that iconic cheesesteak gooeyness.
• Mozzarella cheese: Shredded mozzarella finishes the casserole with that golden, bubbly look.
• Olive oil: Just a tablespoon helps soften the veggies and adds heart-healthy richness.

How to Make Low Carb Philly Cheesesteak Casserole

Step 1: Prepare the Oven and Baking Dish

Set yourself up for casserole success by preheating your oven to 350°F (175°C). Grab your trusty 9×13 baking dish and coat it with non-stick spray; this little move ensures that you won’t be scraping off any cheesy goodness stuck to the pan later.

Step 2: Cook the Vegetables

In a large skillet, warm up your olive oil over medium heat. Toss in the diced onion and bell peppers and let them sauté for about 5-6 minutes, stirring occasionally, until they soften and release their sweetness. Add minced garlic, letting it go just 30 seconds—enough to get fragrant without burning.

Step 3: Brown the Beef

Now, crumble in your ground beef with the sautéed veggies. Sprinkle over your salt and pepper (taste as you go). Stir frequently and break up any clumps with your spatula until the meat is no longer pink and nicely browned, about 7-8 minutes.

Step 4: Enhance with Worcestershire Sauce

Pour in the Worcestershire sauce, stirring really well so every bite is flavored. It’ll deepen the richness of your beef and add those subtle, savory hints you expect from a Philly cheesesteak.

Step 5: Incorporate Cream Cheese

Turn the heat down to low and add the block of cream cheese, cubed. Stir it continuously until it completely melts and transforms your meat and veggie mix into a creamy, luscious filling—this is when the casserole really comes together!

Step 6: Low Carb Philly Cheesesteak Casserole

Once everything in the skillet is one delicious, creamy mass, once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly. You want a nice, smooth layer so every scoop is hearty and flavorful.

Step 7: Layer on the Cheese

Lay the provolone slices over the beef mixture so you get coverage in every bite, then scatter the shredded mozzarella on top for that irresistible bubbling, golden finish.

Step 8: Bake and Rest

Slide the dish into your preheated oven and bake for about 20-25 minutes. When the cheese melts, bubbles, and starts to turn golden at the edges, you’re ready! Let the casserole rest for 5 minutes before serving so everything holds together—trust me, it’s worth the wait.

How to Serve Low Carb Philly Cheesesteak Casserole

Garnishes

Bring a finishing touch to each serving with a sprinkle of freshly chopped parsley or green onions—the pop of color makes each plate look as fresh as it tastes. If you like a little spice, a few dashes of hot sauce or sliced jalapenos take things up a notch!

Side Dishes

This casserole is a star on its own, but pairing it with a crisp, simple side salad brightens things up. Roasted or steamed broccoli, cauliflower rice, or even sautéed zucchini complement the hearty, cheesy flavors and keep everything balanced for a low-carb meal.

Creative Ways to Present

You can spoon the casserole mixture onto lightly toasted, low-carb rolls for fun, open-faced sandwiches. Or, for a party-ready option, scoop portions into ramekins or mini skillets for individual servings—everyone loves their own cheesy casserole! Either way, once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly, and get creative with toppings or sides.

Make Ahead and Storage

Storing Leftovers

Let any leftovers cool before covering your baking dish or transferring portions to airtight containers. Store in the refrigerator for up to four days—the flavors develop beautifully during this time, making for seriously tasty reheats!

Freezing

This casserole freezes exceptionally well. Once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly, and skip topping with cheese until you’re ready to bake. Cover tightly and freeze for up to two months. When you’re set to enjoy, thaw overnight in the fridge before baking.

Reheating

To reheat, simply pop individual portions in the microwave for a minute or two, or place the whole casserole (covered) in the oven at 325°F until warmed through. If you like your cheese especially melty, uncover in the final minutes to let it bubble and brown.

FAQs

Can I use a different type of ground meat?

Absolutely! Ground turkey or chicken work well if you want something lighter, and you can even try a blend with ground pork for extra richness. Make sure to adjust seasoning as lean meats need a touch more salt and spice.

Is this casserole spicy?

As written, this recipe is mild and kid-friendly. If you love a kick, just add a pinch of crushed red pepper flakes or a diced jalapeno when cooking the vegetables.

What if I don’t have provolone cheese?

No worries—Swiss cheese, Monterey Jack, or even shredded cheddar can stand in for provolone. Each one brings a slightly different twist, so use what you love or have on hand.

Can I prep the casserole ahead of time?

Yes! Prepare everything up to the point where once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly. Cover and refrigerate overnight, then add the cheese and bake straight from the fridge the next day (add a few extra minutes to baking time if needed).

What makes this Philly Cheesesteak Casserole low carb?

By skipping any bread filler and packing the casserole with protein, veggies, and cheese, you get all the iconic cheesesteak flavors without the carbs. Everything in here is keto-friendly and filling!

Final Thoughts

If you’re looking for a comforting, cheesy casserole that doesn’t compromise on flavor or health goals, this Low Carb Philly Cheesesteak Casserole is calling your name! It’s so easy to make, and the step where once fully combined, transfer the mixture to the prepared baking dish, spreading it evenly, turns out to be the gateway to a show-stopping meal. Give it a try soon, and don’t be surprised if it becomes a new weeknight staple!

Print