Low Carb Philly Cheesesteak Casserole Recipe

Low Carb Philly Cheesesteak Casserole Recipe hits all the cozy, cheesy notes of a classic cheesesteak while keeping carbs in check and your wallet happy. It tastes rich, beefy, and ultra cheesy, with tender peppers and onions in every bite, and it lands on the table in about 40–45 minutes. I make this on busy weeknights when my family wants comfort food, and I secretly want leftovers for lunch the next day.

Reasons To Try This Low Carb Philly Cheesesteak Casserole Recipe

This Low Carb Philly Cheesesteak Casserole Recipe packs all the flavor of a sub shop favorite without the bread or the greasy wrapper. You get juicy beef, melty cheese, and veggies in one skillet, so cleanup stays easy and budget-friendly.

The casserole slices cleanly, reheats well, and fits into low carb or keto goals without feeling like diet food. Kids usually focus on the cheese, adults appreciate the protein, and everyone fights for the crispy browned bits around the edges.

“Tastes like a cheesesteak from my favorite spot, just in cozy casserole form and without the carb crash. ★★★★★”

Ingredients You Need

Casserole:

• 1.5 pounds ground beef (80/20 or 85/15; use leaner if you prefer less grease)
• 1 tablespoon olive oil or avocado oil
• 1 large yellow onion, thinly sliced
• 2 medium green bell peppers, thinly sliced
• 1 medium red bell pepper, thinly sliced (adds sweetness and color)
• 3 cloves garlic, minced (jarred garlic works in a pinch)
• 1 teaspoon kosher salt, plus more to taste
• 1 teaspoon black pepper
• 1 teaspoon onion powder
• 1 teaspoon garlic powder
• 1 teaspoon smoked paprika or regular paprika
• 1 teaspoon Worcestershire sauce (use a gluten free brand if needed)
• 4 ounces cream cheese, softened (full fat keeps it extra creamy)
• 1/2 cup heavy cream
• 1/4 cup beef broth or stock (boxed or bouillon both work)

Cheese topping:

• 6 slices provolone cheese (use smoked provolone if you like stronger flavor)
• 1 cup shredded mozzarella cheese
• 1/2 cup shredded cheddar or Monterey Jack (optional, for extra cheesiness)

Optional add ins:

• 8 ounces mushrooms, sliced
• 1 small jalapeño, finely diced, seeds removed for less heat
• 1 tablespoon hot sauce or a pinch of red pepper flakes

Pantry shortcuts and notes:

• Use frozen sliced peppers and onions to save chopping time; pat them dry so they do not water down the casserole.
• Use pre-shredded cheese for speed, but hand shredded cheese melts smoother and creamier.
• Use ground turkey or chicken instead of beef if that fits your budget or taste better; add a little extra oil for moisture.

Equipment list:

• Large oven safe skillet or cast iron pan (10 to 12 inches)
• Cutting board and sharp knife
• Wooden spoon or spatula
• Measuring cups and spoons
• Mixing bowl
• 9×13 baking dish if your skillet cannot go in the oven
• Aluminum foil (optional, to prevent over browning)

Tips

• Brown the meat until it develops deep color; that browning builds flavor.
• Drain extra grease if your beef releases a lot, so the casserole does not turn soupy.
• Slice peppers and onions thin so they soften quickly and blend into the filling.
• Soften cream cheese to room temperature for easier mixing and a smoother sauce.
• Taste the beef mixture before baking and adjust salt and pepper right then.
• Layer provolone slices on top, then sprinkle shredded cheese so you get stretchy and gooey texture.
• Let the casserole rest 5 to 10 minutes before slicing so it sets and cuts cleanly.
• Use a broil blast at the end for 1 to 2 minutes if you want extra browned, bubbly cheese.

How to Make Low Carb Philly Cheesesteak Casserole

1: Prep and preheat

Preheat your oven to 375°F. Slice the onions and peppers into thin strips so they cook quickly and evenly. Mince the garlic, soften the cream cheese, and shred the cheese so everything stands ready.

2: Brown the beef

Heat your large skillet over medium high heat and add the oil. Crumble in the ground beef and cook it, stirring often, until it browns and no pink remains. Drain excess fat if needed, then keep the beef in the skillet.

3: Cook the veggies

Push the beef to one side of the skillet and add the onions and peppers to the other side. Cook them for 5 to 7 minutes, stirring occasionally, until they soften and start to caramelize. Stir the garlic into the veggies and cook 30 to 60 seconds until it smells fragrant.

4: Season the mixture

Stir the beef and veggies together. Sprinkle in the salt, pepper, onion powder, garlic powder, smoked paprika, and pour in the Worcestershire sauce. Mix well so the seasoning coats everything, then taste and adjust salt or heat to your liking.

5: Mix the creamy base

In a bowl, whisk together the softened cream cheese, heavy cream, and beef broth until the mixture turns smooth and pourable. If small lumps stay, mash them with a fork or whisk a bit longer. Pour this mixture over the beef and veggies and stir until everything looks coated and creamy.

6: Transfer and top with cheese

If your skillet can go in the oven, smooth the mixture into an even layer right in the pan. If not, transfer it to a greased 9×13 baking dish and spread it out. Lay the provolone slices over the top, then scatter the shredded mozzarella and cheddar evenly.

7: Bake

Place the skillet or baking dish in the oven. Bake for 18 to 22 minutes, until the cheese melts and bubbles around the edges. If you want deeper browning, switch to broil for 1 to 2 minutes and watch closely so the cheese does not burn.

 8: Rest

Remove the casserole from the oven and let it sit for 5 to 10 minutes. This short rest helps the cheesy layer set so you can scoop or slice neat portions. Serve hot with your favorite low carb sides and enjoy that cheesesteak flavor without the roll.

Different Ways to Try It

• Gluten free: Use a gluten free Worcestershire sauce and check broth labels; serve with cauliflower rice or a simple salad.
• Keto focus: Use full fat cream cheese and heavy cream, and skip any starchy sides; top with extra cheese if your macros allow.
• Vegan style: Swap beef with crumbled tofu, tempeh, or a plant based ground; use dairy free cream cheese, plant cream, and vegan cheeses.
• Extra veggies: Add mushrooms, spinach, or zucchini slices; sauté them with the peppers and onions.
• Spicy version: Add jalapeños, hot sauce, or red pepper flakes to the beef mixture.
• Kid friendly: Use only mild cheeses, skip spicy ingredients, and serve with cucumber slices or carrot sticks.

How to Serve Low Carb Philly Cheesesteak Casserole

Serve this Low Carb Philly Cheesesteak Casserole Recipe with a side of crisp salad, roasted broccoli, or simple cauliflower rice to soak up the cheesy sauce. I also like to spoon it into lettuce cups for a handheld option that still stays low carb. Add sliced avocado or a dollop of sour cream on top for extra richness. Round out the meal with sparkling water, flavored seltzer, or iced tea for a refreshing contrast.

Make-Ahead and Storage Success

You can assemble the casserole up to 24 hours ahead, cover it tightly, and keep it in the fridge until baking time. Store leftovers in an airtight container in the refrigerator for up to 4 days, and reheat portions in the microwave or oven until hot and bubbly. For longer storage, freeze cooled portions for up to 2 months and thaw them overnight in the fridge before reheating. If the sauce thickens after chilling, stir in a splash of cream or broth during reheating to bring back that creamy texture.

Adaly Kandice

Low Carb Philly Cheesesteak Casserole Recipe

Low Carb Philly Cheesesteak Casserole is a hearty, cheesy, and satisfying main dish that delivers all the flavors of a classic Philly cheesesteak without the bread.

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Prep Time 20 minutes mins

Cook Time 25 minutes mins

Total Time 45 minutes mins

Servings: 6

Course: Lunch

Cuisine: American

Ingredients

  

• 1 1/2 pounds ground beef (or thinly sliced steak)
• 2 green bell peppers, thinly sliced
• 1 medium onion, thinly sliced
• 8 ounces mushrooms, sliced
• 2 tablespoons butter or olive oil
• 2 cloves garlic, minced
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1 teaspoon onion powder
• 1 teaspoon paprika
• 4 ounces cream cheese, softened
• 1/2 cup heavy cream
• 1/2 cup beef broth (low sodium)
• 1 1/2 cups shredded provolone or mozzarella cheese
• 1/2 cup shredded cheddar cheese

Instructions

 

1. Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish.
2. In a large skillet over medium-high heat, cook the ground beef until browned, breaking it up with a spoon. Drain excess fat if needed and transfer the meat to the prepared baking dish.
3. In the same skillet, add the butter or olive oil, sliced bell peppers, onion, and mushrooms if using. Sauté for 6–8 minutes until vegetables are softened.
4. Add the garlic, salt, black pepper, onion powder, and paprika to the vegetables. Cook for 1–2 minutes until fragrant, then spread the mixture evenly over the beef in the baking dish.
5. In a small saucepan over low heat, whisk together the cream cheese, heavy cream, and beef broth until smooth and slightly thickened.
6. Pour the cream cheese mixture evenly over the beef and vegetables. Top with shredded provolone or mozzarella and cheddar cheese.
7. Bake for 15–20 minutes, or until the cheese is melted, bubbly, and lightly golden around the edges.
8. Let the casserole rest for 5 minutes before serving. Scoop into bowls and serve hot.

Notes

Nutrition Information
Approximate per serving (1/6 of recipe): 430 calories; fat 32 g; saturated fat 16 g; carbohydrates 7 g; fiber 1 g; sugars 3 g; protein 28 g; sodium 720 mg. Values will vary based on specific ingredients, brands, and portion sizes.