Name: Low Carb Philly Cheesesteak Casserole Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 2 lbs ground beef (80/20 fat ratio preferred); 1 large onion, diced; 2 large bell peppers (green, red, or mixed), diced; 2 cloves garlic, minced; 8 oz cream cheese, softened to room temperature; 8 oz provolone cheese, sliced; 1.5 cups mozzarella cheese, shredded; 2 tbsp Worcestershire sauce; 1 tbsp olive oil; Salt and pepper, to taste

Jump to Recipe

If you are craving a comforting, hearty meal that keeps your carb count low without sacrificing flavor, this Low Carb Philly Cheesesteak Casserole Recipe is going to be your new best friend. Imagine all the rich, savory goodness of a classic Philly cheesesteak in an easy-to-make casserole form that’s perfect for weeknight dinners or casual get-togethers. Juicy ground beef, tender sautéed peppers and onions, and a creamy cheese blend come together to create layers of absolute satisfaction in every bite. This dish is not just delicious but also cleverly designed to keep your low-carb goals right on track, making it a win-win for both taste and nutrition.

A close-up view of a baked dish in a white bowl with three main layers. The bottom layer is a creamy white sauce with a smooth texture. The middle layer is a thick mix of cooked ground meat in brown with a slightly chunky texture. The top layer is melted cheese with white and yellow colors, spread unevenly with some parts bubbling and slightly golden. Red bell pepper slices are scattered on top, adding bright red color, along with small pieces of chopped green herbs spread evenly for color contrast. The bowl is placed on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Ingredients You’ll Need

Each ingredient in this Low Carb Philly Cheesesteak Casserole Recipe is carefully chosen to build a perfect balance of flavor, texture, and color. From the juicy ground beef that forms the hearty base to the vibrant peppers and melty cheeses that bring richness and depth, these essentials are simple yet incredibly effective for the ultimate comfort dish.

2 lbs ground beef (80/20 fat ratio preferred): Juicy and flavorful, the fat content ensures moisture and richness.
1 large onion, diced: Adds sweetness and a slight crunch for texture contrast.
2 large bell peppers, diced (green, red, or mixed): Provides color, sweetness, and subtle earthiness.
2 cloves garlic, minced: Brings that aromatic kick that lifts the entire dish.
8 oz cream cheese, softened: Makes the casserole luxuriously creamy and holds everything together.
2 tbsp Worcestershire sauce: A savory depth that enhances the meat’s natural flavor.
Salt and pepper to taste: The simplest yet crucial seasonings to tie all flavors perfectly.
8 oz provolone cheese, sliced: Mild and melty, adding a distinctive Philly cheesesteak vibe.
1.5 cups mozzarella cheese, shredded: For that beautiful gooey, stretchy cheese pull.
1 tbsp olive oil: Helps sauté the vegetables to perfection while adding a subtle fruity note.

How to Make Low Carb Philly Cheesesteak Casserole Recipe

Step 1: Prepare Your Oven and Baking Dish

First things first, preheat your oven to 350°F (175°C) and generously spray a 9×13-inch baking dish with non-stick spray. This preps your cooking space so the casserole layers bake evenly and won’t stick, making cleanup as easy as can be.

Step 2: Sauté the Aromatics

Heat olive oil in a large skillet over medium heat and add your diced onions and bell peppers. Cook these for about 5 to 6 minutes until they soften and release their natural sweetness—this step builds a flavorful foundation. Toss in the minced garlic and cook for just 30 seconds more, stirring constantly so it doesn’t burn but infuses the veggies with that teasing garlicky aroma.

Step 3: Brown the Ground Beef

Add the ground beef right to the skillet, breaking it up with your spatula. Season it generously with salt and pepper, and cook for 7 to 8 minutes until there’s no pink left and it’s beautifully browned. If there’s excess fat pooling, carefully drain it off; you want the richness but not grease pooling on every bite.

Step 4: Add Flavor and Creaminess

Stir in the Worcestershire sauce, letting it coat every bit of meat for a depth of savory goodness. Then reduce the heat to low and add the softened cream cheese. Stir tirelessly until it melts into a creamy, dreamy sauce that wraps every ingredient together in a luscious blanket.

Step 5: Assemble and Bake

Transfer this rich mixture to your prepared baking dish. Spread it out evenly, then cover the top with torn provolone slices followed by a generous layer of shredded mozzarella. Pop the casserole into the oven and bake for 22 to 25 minutes. You’ll know it’s done when the cheese is melted, bubbling, and sporting a light golden crust. Let the casserole rest for about 5 minutes to let all those flavors settle before serving.

How to Serve Low Carb Philly Cheesesteak Casserole Recipe

Low Carb Philly Cheesesteak Casserole Recipe - Recipe Image

Garnishes

If you want to elevate this dish even more, consider sprinkling freshly chopped parsley or chives on top for a pop of color and fresh herbaceous brightness. A drizzle of spicy mayo or a few sliced jalapeños adds exciting heat, perfectly balancing the creamy cheese.

Side Dishes

Because this Low Carb Philly Cheesesteak Casserole Recipe is rich and filling, lighter sides work wonderfully alongside. A crisp green salad with a tangy vinaigrette or steamed broccoli tossed with lemon zest are perfect complements that won’t overpower the star of the show.

Creative Ways to Present

For a fun twist, serve individual portions in ramekins or scoop it into small bell pepper halves to make handheld “Philly cheesesteak bowls.” You can also spoon it over sautéed zucchini noodles for an extra low-carb, veggie-packed meal with a gourmet flair.

Make Ahead and Storage

Storing Leftovers

Any leftovers from this Low Carb Philly Cheesesteak Casserole Recipe store beautifully in an airtight container in the refrigerator for up to four days. The flavors actually mellow and meld nicely, making your next meal just as tasty if not more.

Freezing

To freeze, cool the casserole completely, then cover tightly with plastic wrap and foil or transfer to a freezer-safe container. It can be frozen for up to three months, allowing you to prep this comforting dish well ahead of time for busy days.

Reheating

When you’re ready to enjoy leftovers, thaw in the fridge overnight if frozen, then reheat in the oven at 350°F for about 15 minutes until warmed through and bubbly. For quicker reheating, microwave portions in 1 to 2 minute bursts, stirring or rotating to heat evenly.

FAQs

Can I use other types of cheese?

Absolutely! While provolone and mozzarella are classic choices that capture the Philly cheesesteak vibe perfectly, swapping in cheddar or Monterey Jack can add your own twist. Just choose cheeses that melt well to keep that creamy texture.

Is ground beef the only meat option?

You can experiment with ground turkey or chicken for a leaner version, though the flavor and juiciness will be slightly different. For extra authenticity, thinly sliced steak strips can be used if you want something closer to a traditional cheesesteak but in casserole form.

Can I prepare the casserole ahead and bake it later?

Yes! You can assemble the casserole a day in advance, cover it tightly, and refrigerate it. When ready, bake it at 350°F for a few extra minutes to ensure it’s heated through and the cheese is nicely melted.

How low carb is this recipe?

This Low Carb Philly Cheesesteak Casserole Recipe focuses on using no bread and minimal starchy vegetables, keeping the carb count low while still packing in hearty protein and fresh veggies, perfect for low-carb or keto-friendly diets.

What can I serve if I want to add some carbs?

If you’re not strictly low-carb, crusty bread or roasted potatoes make fantastic sides to soak up any extra cheesy sauce. But the casserole itself stands perfectly on its own or with low-carb sides for a balanced meal.

Final Thoughts

Trust me, once you try this Low Carb Philly Cheesesteak Casserole Recipe, it’s going to become a go-to comfort food that feels indulgent but fits your lifestyle. Easy to make, packed with flavor, and endlessly satisfying, it’s one of those dishes that brings joy from the first cheesy bite. Go ahead and give it a whirl—you’ll wonder how you ever did without it!