Low Carb Philly Cheesesteak Casserole

Introduction

If you love the classic flavors of a Philly cheesesteak but want a low-carb, keto-friendly meal, this Low Carb Philly Cheesesteak Casserole is the perfect solution. It combines savory ground beef, sautéed onions and peppers, creamy cheese, and rich seasoning into a comforting baked dish that’s easy to prepare and incredibly satisfying.

This casserole captures everything people love about a traditional cheesesteak sandwich—juicy beef, melted provolone, and flavorful vegetables—without the bread. The addition of cream cheese creates a creamy texture that holds the casserole together while adding extra richness.

Whether you’re following a low-carb diet, keto lifestyle, or simply looking for a hearty dinner, this casserole is a fantastic weeknight meal the whole family will enjoy.

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
• 2 tbsp Worcestershire sauce
• Salt and pepper, to taste
• 8 oz provolone cheese, sliced
• 1½ cups mozzarella cheese, shredded
• 1 tbsp olive oil

Equipment

• 9×13 baking dish
• Large skillet
• Spatula
• Oven

Instructions

1. Preheat the Oven

Preheat your oven to 350°F (175°C) and lightly spray a 9×13 baking dish with non-stick cooking spray.

2. Cook the Vegetables

Heat olive oil in a large skillet over medium heat.
Add the diced onion and bell peppers and cook for 5–6 minutes, stirring occasionally until they soften and become fragrant.

3. Add Garlic

Stir in the minced garlic and cook for about 30 seconds, stirring constantly to prevent burning.

4. Brown the Beef

Add the ground beef to the skillet. Break it up with a spatula as it cooks.
Season with salt and pepper and cook for 7–8 minutes until fully browned and no pink remains.
Drain any excess fat if necessary.

5. Add Flavor and Creaminess

Stir in the Worcestershire sauce and mix well to coat the meat.
Reduce the heat to low and add the softened cream cheese, stirring until it melts completely and forms a creamy mixture.

6. Assemble the Casserole

Transfer the beef mixture into the prepared baking dish and spread it evenly.

Layer torn provolone cheese slices over the meat mixture, then sprinkle shredded mozzarella cheese on top.

7. Bake

Bake the casserole for 22–25 minutes, or until the cheese is melted, bubbly, and lightly golden.

8. Rest and Serve

Let the casserole rest for about 5 minutes before serving to allow the flavors to meld together.

Tips for the Best Cheesesteak Casserole

Use the Right Ground Beef

An 80/20 ground beef ratio provides the best flavor and prevents the casserole from drying out.

Slice Vegetables Evenly

Uniformly diced peppers and onions ensure they cook evenly and blend well with the beef.

Soften the Cream Cheese

Allow cream cheese to reach room temperature so it melts smoothly into the meat mixture.

Add Extra Flavor

You can enhance the flavor by adding:

• Mushrooms
• A pinch of smoked paprika
• Red pepper flakes for heat

Serving Suggestions

This casserole is delicious on its own, but it also pairs well with:

• Cauliflower rice
• Roasted vegetables
• A fresh green salad
• Low-carb garlic bread

Why You’ll Love This Recipe

This Low Carb Philly Cheesesteak Casserole is a favorite because it’s:

• Low-carb and keto-friendly
• Quick and easy to prepare
• Rich, cheesy, and comforting
• Perfect for meal prep
• Packed with classic cheesesteak flavor

It’s a great option for anyone who wants a healthy comfort food dinner without sacrificing flavor.

Storage and Reheating

Refrigeration

Store leftovers in an airtight container in the refrigerator for up to 4 days.

Freezing

You can freeze the casserole for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat in the oven at 325°F for about 15 minutes or microwave individual portions until warm.

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Frequently Asked Questions

Can I use steak instead of ground beef?

Yes. Thinly sliced steak can be used for a more traditional cheesesteak texture.

Can I add mushrooms?

Absolutely. Mushrooms are a classic cheesesteak ingredient and work perfectly in this casserole.

Is this recipe keto-friendly?

Yes. This casserole is naturally low-carb and keto-friendly, making it great for those following ketogenic diets.

Can I prepare it ahead of time?

Yes. Assemble the casserole, cover, and refrigerate for up to 24 hours before baking.

What cheese can replace provolone?

You can substitute white American cheese, cheddar, or Monterey Jack if preferred.