Cheesy Low Carb Philly Cheesesteak Casserole Recipe

Prepare to fall in love with Cheesy Low Carb Philly Cheesesteak Casserole! This crowd-pleasing dish takes all the flavors you adore from the classic Philly sandwich—juicy steak, sweet peppers, caramelized onions, and a dreamy blanket of melted cheese—and transforms them into a comforting casserole without the carbs. It’s family-friendly, weeknight ready, and outrageously delicious, making it the kind of recipe you’ll want to share with everyone you know.

Ingredients You’ll Need

The ingredients for Cheesy Low Carb Philly Cheesesteak Casserole are simple and familiar, but each one plays its part in turning this casserole into a seriously craveable dinner. Don’t skip on quality; every element helps build layers of flavor and texture that make this dish memorable.

• Thinly sliced ribeye or sirloin steak (1 lb): Steak is the star here, providing richness and satisfying protein—just be sure it’s sliced nice and thin for the ultimate tenderness.
• Mixed bell peppers (1 cup, chopped): The colorful bell peppers add sweetness, depth, and a vibrant pop to every bite.
• Medium onion (1, diced): Onions bring that classic Philadelphia sweetness and help meld the casserole’s flavors together.
• Garlic (3 cloves, minced): Just a few cloves of garlic amp up the savory vibes and infuse the dish with bold aroma.
• Cream cheese (8 oz): This is your secret weapon for a creamy, luscious sauce that holds everything together.
• Shredded provolone or mozzarella cheese (2 cups): The gooey, stretchy cheese topping that makes this casserole completely irresistible.
• Salt (1 tsp): Simple seasoning brings out the richness of the steak and the sweetness of the veggies.
• Pepper (1 tsp): Fresh cracked pepper adds a gentle kick and complexity.
• Worcestershire sauce (1 tbsp): This punchy ingredient gives the whole casserole a savory, slightly tangy finish that ties everything together.

How to Make Cheesy Low Carb Philly Cheesesteak Casserole

Step 1: Prepare Your Oven and Dish

Start by turning your oven on to 375°F (190°C) so it’s hot and ready when you need it. Give your favorite baking dish a quick coat of nonstick spray—this makes serving a breeze and keeps all that cheesy goodness from sticking!

Step 2: Sauté the Steak

Heat a generous swirl of olive oil in a large skillet over medium-high. Toss in your thinly sliced steak, seasoning with salt and pepper. Sear it for about five minutes until it’s just browned, stirring occasionally to keep things juicy and flavorful. This is where those classic cheesesteak notes begin!

Step 3: Add Veggies and Garlic

Next up, let’s build out those hearty, savory layers. Stir in the chopped bell peppers, diced onion, and minced garlic. Sauté everything until the veggies are slightly softened and your kitchen smells amazing—this should take around five minutes. That light caramelization adds so much depth!

Step 4: Build the Creamy Base

Drop the heat down to low and add in the cream cheese. Stir patiently until it melts and melds into a luxuriously creamy sauce, wrapping every bite in rich, tangy goodness. Pour in that splash of Worcestershire sauce for an extra dimension of flavor.

Step 5: Assemble and Bake

Spoon the cheesy filling into your prepared baking dish and smooth the top. Generously sprinkle shredded provolone or mozzarella over everything—don’t be shy! Pop it into your oven and let it bake for 15 to 20 minutes, until it’s bubbling away and gorgeously golden on top.

How to Serve Cheesy Low Carb Philly Cheesesteak Casserole

Garnishes

Add a final flourish with a sprinkle of fresh parsley, chives, or even thinly sliced green onions. For a slight kick, a pinch of red pepper flakes or a dusting of smoked paprika can really elevate each serving of Cheesy Low Carb Philly Cheesesteak Casserole.

Side Dishes

This casserole pairs beautifully with a crisp green salad tossed in a tangy vinaigrette, or a batch of roasted veggies like broccoli or asparagus. If you’re not strictly low-carb, a helping of garlic bread for scooping up the gooey filling can be downright heavenly.

Creative Ways to Present

You can serve Cheesy Low Carb Philly Cheesesteak Casserole atop zucchini noodles, wrapped in lettuce leaves for a hand-held treat, or even stuffed into halved bell peppers for a fun twist. Try scooping it into mini ramekins for individual servings at your next brunch or dinner party.

Make Ahead and Storage

Storing Leftovers

Have leftovers? Lucky you! Let the casserole cool to room temperature, then cover tightly or transfer to airtight containers. It’ll keep nicely in your fridge for up to four days, making lunch (or late-night snacking) super easy.

Freezing

Cheesy Low Carb Philly Cheesesteak Casserole freezes like a dream. Cut it into portions and wrap each one in foil or plastic wrap, then place in a freezer-safe bag or container. It’ll be good for up to three months—just thaw overnight before reheating.

Reheating

For the best texture, reheat individual servings in the oven or toaster oven at 350°F until hot and bubbly. You can also microwave it for quick results, just cover and heat in 60-second bursts until warmed through. Add a sprinkle of extra cheese if you like it extra gooey!

FAQs

Can I use a different type of steak in this recipe?

Absolutely! While ribeye or sirloin work best for their tenderness and flavor, flank steak or even shaved beef are great alternatives if that’s what you have on hand.

Is it okay to substitute the cheese?

Definitely. Mozzarella gives you that classic melt, but sharp provolone or Monterey Jack can add new flavor dimensions. Mix and match or use what you love!

How spicy is Cheesy Low Carb Philly Cheesesteak Casserole?

On its own, it’s not spicy—just rich, creamy, and savory. If you’re craving heat, add sliced jalapeños or a dash of hot sauce to the mix before baking.

Can this recipe be doubled for a crowd?

Yes! Easily double all the ingredients and use a larger casserole dish. It’s perfect for potlucks, game-day gatherings, and feeding hungry families.

Is this casserole gluten-free?

Yes, Cheesy Low Carb Philly Cheesesteak Casserole is naturally gluten-free as written. Just check your Worcestershire sauce label to be sure it doesn’t contain any gluten-based ingredients.

Final Thoughts

If you’re looking for a comforting, flavorful dish that just happens to fit your low-carb lifestyle, Cheesy Low Carb Philly Cheesesteak Casserole is sure to hit the spot. It’s one of those special recipes that brings everyone to the table with smiles and full bellies—give it a try tonight and discover your new cheesy favorite!

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