Amazing Low Carb Philly Cheesesteak Casserole

Need to try this! I remember the last time I was serious about eating low-carb and I just PINE-D for a classic Philly cheesesteak. It felt like such a cruel joke that my favorite comfort food was suddenly off-limits. So, I got determined, spent ages in my kitchen playing with ingredients, and finally, *finally*, landed on the perfect solution: the Low Carb Philly Cheesesteak Casserole! Seriously, the smell alone takes me back. As a Mindfulness & Emotional Wellness Specialist, I know how important it is to feel satisfied, and this dish totally nails that without derailing wellness goals. It’s proof that you can have your (cheesesteak) cake and eat it too, even on a low-carb journey!

A golden-brown baked Low Carb Philly Cheesesteak Casserole in a white dish, topped with melted cheese and parsley.

Why You’ll Love This Low Carb Philly Cheesesteak Casserole

Okay, so why is this Low Carb Philly Cheesesteak Casserole my go-to? Let me count the ways!

  • Super Easy to Make: Seriously, dump and bake vibes practically! You’ll be in and out of the kitchen in no time.
  • All the Philly Flavor, None of the Carbs: You get that classic, savory, cheesy goodness without any of the bread guilt. It’s a game-changer!
  • Perfect for Meal Prep: Make a big batch on Sunday and you’ve got delicious lunches or quick dinners ready to go all week. Winning!
  • Satisfying & Hearty: This isn’t some sad diet meal. It’s rich, filling, and tastes like pure comfort.

Gather Your Ingredients for Low Carb Philly Cheesesteak Casserole

Alright, let’s get our kitchen ready for this magic! Here’s what you’ll need to whip up this amazing Low Carb Philly Cheesesteak Casserole. Don’t worry, it’s all pretty standard stuff and totally worth it.

For the Casserole Base:

  • 2 pounds shaved steak (just like you’d get for a real cheesesteak!)
  • Salt and pepper, to taste (season it up good!)
  • 1 tablespoon avocado oil (or olive oil works too!)
  • 1 onion, chopped (yellow or white is fine)
  • 1 bell pepper, cut into ½ inch strips (I love using red or green, or a mix!)
  • 1 teaspoon garlic powder (because garlic makes everything better)

For the Super Creamy Cheese Sauce:

  • 1 tablespoon butter
  • 3/4 cup beef broth (use a good quality one for best flavor!)
  • 4 ounces cream cheese, cubed (let it soften a little first, makes it easier!)
  • 16 ounces provolone cheese, divided (this is key! we’ll use 8oz for the sauce and 8oz for the top!)

Step-by-Step Guide to Making Your Low Carb Philly Cheesesteak Casserole

Alright, let’s get this deliciousness happening! Making my Low Carb Philly Cheesesteak Casserole is honestly super straightforward, and watching it come together is half the fun. Just follow along here, and you’ll have a showstopper ready before you know it!

1. Get That Oven Hot and Steak Ready!

First things first, crank your oven up to 350°F (that’s 175°C). You want it nice and toasty for our casserole. Now, grab that shaved steak and give it a good sprinkle of salt and pepper. Don’t be shy – flavor starts here!

2. Brown the Beef and Sauté the Veggies

Heat up that tablespoon of avocado oil in a big skillet over medium-high heat. Toss in your seasoned steak. You only need about 2 minutes per side to get it nicely browned. We’re not cooking it all the way through here, just getting some lovely color. Scoop it out onto a plate to cool a bit, and then give it a rough chop. Keep that skillet handy!

Next, right in that same skillet (no need to wash it!), toss in your chopped onion and bell pepper strips. Let them sizzle and soften for about 6 minutes. Oh, and stir in that garlic powder, plus a little more salt and pepper if you feel like it. Once the veggies are looking tender and gorgeous, add your chopped steak back into the pan. Give it all a good mix, then take the skillet off the heat. Easy peasy!

A close-up of a bubbling Low Carb Philly Cheesesteak Casserole in a baking dish, topped with melted cheese, steak, and onions.

3. Whip Up That Dreamy Cheese Sauce

Grab a saucepan for this. Melt the butter over medium-high heat. Pour in the beef broth and let it come to a gentle simmer. Now, turn the heat down to medium and add your cubed cream cheese. Keep whisking, whisking, whisking! You want it to melt into a wonderfully smooth sauce. Once it’s all creamy and lovely, turn the heat down to low. Add 8 ounces of your provolone cheese and stir until it’s completely melted and luscious. Trust me, this sauce is pure magic!

4. Combine, Top, and Bake to Perfection!

Pour that glorious cheese sauce into the skillet with your steak and veggie mixture. Stir everything together until it’s all coated beautifully. Now, transfer this whole amazing combo into your casserole dish. Spread it out evenly. Top it off with the remaining 8 ounces of provolone cheese – stack it up high! Pop that into your preheated oven and bake for about 25 to 30 minutes. You’re looking for that top layer of cheese to be melty and bubbly, and the whole casserole to be heated through. Check out this Sheet Pan Chicken & Veggies for more easy cooking ideas!

A slice of Low Carb Philly Cheesesteak Casserole with melted cheese, steak, peppers, and onions.

Tips for the Best Low Carb Philly Cheesesteak Casserole

Alright, listen up! To make sure your Low Carb Philly Cheesesteak Casserole is the absolute best it can be, I’ve picked up a few little tricks over the years. First off, don’t skimp on the quality of your meat. Shaved steak is traditional for a reason – ask your butcher if they can slice it super thin for you! It cooks so much faster and gets that authentic texture. Trust me on this one!

Also, when you’re making that dreamy cheese sauce, using a good quality beef broth makes a HUGE difference. It’s the base of the flavor! And remember, if you want to add a little kick, throw in some red pepper flakes with your veggies. It adds a subtle warmth that really complements the cheese. For a truly silky sauce, make sure your cream cheese is nice and soft before you start whisking. It just melts in so much smoother! If you’re looking for more low-carb sauce ideas, check out how to make a perfect low-carb roux – it’s a game changer for so many dishes!

And for goodness sake, don’t overcook the steak! You just want to brown it a bit, as it’ll finish cooking in the oven. Overcooked steak can get tough. I’ve seen other recipes online that get into some wild variations, like this keto Philly cheesesteak casserole, but sticking to the basics with good ingredients is key for this one!

A golden-brown baked Low Carb Philly Cheesesteak Casserole in a white baking dish, topped with melted cheese and parsley.

Frequently Asked Questions About This Casserole

Got questions about this amazing Low Carb Philly Cheesesteak Casserole? I’ve got you covered!

Can I use a different type of meat?

Absolutely! While shaved steak is traditional and cooks super fast, you could totally use thinly sliced chicken breast or thigh, or even ground beef if that’s what you have on hand. Just make sure to cook them thoroughly before adding them to the casserole!

How can I make this casserole a little spicier?

Oh, I love a little heat! For a spicier kick, try adding a pinch of cayenne pepper or some red pepper flakes when you’re sautéing the onions and peppers. A little dash of your favorite hot sauce mixed into the cheese sauce also works wonders!

What are some good side dishes to serve with this?

This casserole is pretty hearty on its own, but if you want to round out the meal, keep it low-carb! A simple side salad with a light vinaigrette is always a winner. Roasted broccoli or green beans also pair beautifully. For even more inspiration, check out my list of 15 healthy dinner ideas!

Can I make this ahead of time for meal prep?

Yes, you absolutely can! This Low Carb Philly Cheesesteak Casserole is fantastic for meal prep. You can assemble the entire casserole (before baking!) and cover it tightly with plastic wrap and then foil. It’ll keep in the fridge for up to two days. Just add about 5-10 minutes to the baking time when you’re ready to cook it. Or, bake it, let it cool completely, and store it in individual portions in the fridge for easy reheating. It reheats wonderfully in the microwave or oven!

Nutritional Information

Just so you know, the numbers can wiggle a bit depending on the exact brands you use, but here’s a good estimate for one serving of this yummy Low Carb Philly Cheesesteak Casserole: around 524 calories, just 4g of carbs, about 39g of protein, and 39g of healthy fats. Delicious and fits right into your low-carb goals!

Share Your Culinary Creations!

Make this Low Carb Philly Cheesesteak Casserole and then tell me all about it! Leave a comment below with your thoughts, and if you rate it, let me know how it turned out! I’d also love to see your creations on social media – tag me! And if you have any questions or ideas, head over to my contact page!

A scoop of cheesy Low Carb Philly Cheesesteak Casserole being lifted from a baking dish, showing melted cheese and ground beef.

Low Carb Philly Cheesesteak Casserole

Enjoy the classic flavors of a Philly cheesesteak in a convenient, low-carb casserole. This recipe is perfect for healthy eating and meal prep.
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 8 servings
Course: Main Course
Cuisine: American
Calories: 524.3

Ingredients
  

For the Casserole
  • 2 pounds shaved steak
  • Salt and pepper to taste
  • 1 tablespoon avocado oil
  • 1 chopped onion
  • 1 bell pepper cut into ½ inch strips (red, green, or yellow)
  • 1 teaspoon garlic powder
For the Cheese Sauce
  • 1 tablespoon butter
  • 3/4 cup beef broth
  • 4 ounces cream cheese cubed
  • 16 ounces provolone divided 8 ounces for sauce, 8 ounces for topping

Equipment

  • Skillet
  • Saucepan
  • Casserole dish

Method
 

  1. Preheat your oven to 350° F. Season the steak with salt and pepper.
  2. Heat the avocado oil in a large skillet over medium-high heat. Add the steak and cook until browned, about 2 minutes per side. Remove the steak from the skillet, let it cool slightly, and chop it.
  3. Add the onion and bell pepper to the same skillet and cook for 6 minutes, until softened. Stir in the garlic powder and season with salt and pepper. Return the chopped steak to the skillet and mix everything together. Remove from heat.
  4. In a saucepan, melt the butter and add the beef broth. Bring to a simmer over medium-high heat. Reduce the heat to medium and add the cream cheese. Whisk often until the cream cheese is melted. Reduce heat to low and add 8 ounces of the provolone cheese. Cook until the cheese is melted.
  5. Pour the cheese sauce into the skillet with the steak mixture and stir to combine. Transfer the mixture to a casserole dish and top with the remaining 8 ounces of provolone cheese.
  6. Bake for 25 to 30 minutes, until the casserole is bubbly and heated through.

Nutrition

Calories: 524.3kcalCarbohydrates: 4.26gProtein: 38.79gFat: 39.26gSaturated Fat: 20.69gCholesterol: 127.65mgSodium: 698.72mgPotassium: 469.8mgFiber: 0.58gSugar: 1.99gVitamin A: 1215.8IUVitamin C: 20.01mgCalcium: 454.99mgIron: 2.43mg

Notes

This casserole is a satisfying way to enjoy the flavors of a Philly cheesesteak while sticking to a low-carb diet. It reheats well, making it ideal for meal prep.

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