Cheesy Low Carb Philly Cheesesteak Casserole Recipe

Introduction

Indulge in all the savory flavors of a classic Philly cheesesteak—without the carbs! This Cheesy Low Carb Philly Cheesesteak Casserole Recipe turns the iconic sandwich into a hearty, gooey, and satisfying casserole that’s perfect for a weeknight dinner or meal prep. With its rich cheese topping, juicy beef, and a bounty of sautéed peppers and onions, you get ultimate comfort food that’s also low in carbs.

Why This Philly Cheesesteak Casserole Is a Crowd-Pleaser

Packed with flavor, this dish captures the essence of the beloved Philly cheesesteak but skips the bread, making it keto- and gluten-free friendly. Quick to assemble, customizable with your favorite veggies, and bound together by melty cheese, it’s a satisfying meal that appeals to everyone—even those not counting carbs. Serve it bubbling from the oven, and it’ll disappear fast at dinner parties or potlucks.

Ingredients for a Delicious Low Carb Cheesesteak Casserole

The star ingredients mirror the sandwich’s roots: thinly sliced beef, ample peppers and onions, and a generous blend of cheeses. Swapping out the roll for a casserole base keeps this hearty and filling without the heaviness.

Ingredients
– 1 1/2 lbs thin-sliced beef steak (ribeye or sirloin works best)
– 2 tablespoons olive oil
– 1 large onion, sliced
– 2 large bell peppers (mix of green and red), sliced
– 8 oz mushrooms, sliced (optional)
– 3 cloves garlic, minced
– 1 teaspoon salt
– 1/2 teaspoon black pepper
– 1 teaspoon Italian seasoning
– 4 oz cream cheese, softened
– 2 tablespoons mayonnaise
– 1 cup shredded provolone cheese
– 1 cup shredded mozzarella cheese
– 1/2 cup grated Parmesan cheese
– Optional: Chopped parsley for garnish

Prepping Your Ingredients Easily

To get those perfect, evenly sized pepper and onion slices, a high-quality vegetable chopper makes prep a breeze. The Mueller Pro-Series 10-in-1, 8 Blade Vegetable Chopper delivers speedy, consistent cuts, ensuring your veggies cook evenly.

For tender, thin beef, it’s simplest to slice meat while it’s still slightly frozen—or ask your butcher to do it for you. A Bamboo Cutting Board is ideal for keeping your prep easy and your workspace tidy.

How to Make Cheesy Low Carb Philly Cheesesteak Casserole

1. Preheat your oven to 375°F. Set aside a baking dish and line it with Reynolds Kitchens Brown Parchment Paper Roll for easy cleanup.
2. Heat the SENSARTE Nonstick Frying Pan Skillet over medium-high heat. Add 1 tablespoon olive oil. Sauté the onions and peppers (and mushrooms, if using) for 5-6 minutes, until softened. Stir in the minced garlic and cook for 1 minute more. Remove veggies to a plate.
3. In the same skillet, add the remaining oil and sliced beef. Cook, stirring often, until beef is just browned (about 3-4 minutes). Season with salt, pepper, and Italian seasoning.
4. Return the sautéed veggies to the pan with the beef. Add the cream cheese and mayonnaise, stirring until the mixture is creamy and well blended. Remove from heat.
5. Spread the mixture evenly in your prepared baking dish. Top with shredded provolone and mozzarella, then sprinkle with Parmesan.
6. Bake uncovered for 15–18 minutes, or until the cheese is bubbling and golden. Let cool for 5 minutes before slicing. Garnish with fresh parsley if desired.

Serving Suggestions & Storage Tips

This cheesy casserole is great served hot from the oven. Pair it with a crisp salad stored in a Bentgo Salad Container or roasted veggies for a balanced meal. Leftovers keep well in Rubbermaid Brilliance Food Storage Containers for an easy grab-and-go lunch.

Nutrition & Portions

This recipe yields 6 generous servings. Each serving contains around 340-400 calories, 5g net carbs, 28g protein, and 25g fat (macros may vary slightly depending on specific brands and optional ingredients). It’s a low carb, high-protein delight that fits most keto-friendly meal plans.

Cheesy, Satisfying, and Low-Carb—All in One Pan

With its bold flavors, gooey cheese, and classic Philly cheesesteak essence, this casserole turns dinnertime into a celebration. Skip the bun—not the flavor—and give this ultimate low carb comfort food a try!

Cook and Prep Times

Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes

Enjoy your Cheesy Low Carb Philly Cheesesteak Casserole—an easy, crave-worthy dinner everyone will ask for again!