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Easy, Keto Low-Carb Philly Cheese Steak Casserole

Keto Low-Carb Philly Cheese Steak Casserole is a quick and easy steak dinner recipe with sirloin steak, cream cheese, green bell peppers, and mushrooms. This is the best steak marinade recipe and you can also use flank steak if you wish. If you are looking for sides to pair with your steak, going the casserole route is perfect! You get everything in one meal prep friendly dish.

keto low carb philly cheesesteak in a glass pan

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FOR THE FULL LIST OF INGREDIENTS AND COMPREHENSIVE INSTRUCTIONS, PLEASE SEE THE RECIPE CARD AT THE END OF THIS POST. BEFORE YOU SCROLL, THERE’S IMPORTANT INFORMATION IN THIS BLOG POST.

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green peppers, cheese, mushrooms, and onion for keto low carb philly cheesesteak

I am a much happier camper if I have my meals prepped for the week in advance. Casseroles make that really easy to do! Simply store this casserole in airtight containers and reheat throughout the week.

Is Steak Good for Keto?

Steak is perfect for keto because it is essentially carb-free! I recommend using grass-fed steaks because grass-fed has a better nutritional impact.

Is Bell Pepper Keto-Friendly?

Half a bell pepper has 3 net grams of carbs. For this recipe, that value is divided among 6 servings.

eggs, heavy whipping cream, and shredded cheese whisked

How Do You Make Garlic Butter Steak?

This Garlic Butter Steak from Taste of Home is amazing.

keto low carb philly cheesesteak in a glass pan

How Do You Make a Juicy Steak?

keto low carb philly cheesesteak in a glass pan with provolone cheese

The key to a juicy steak is a good marinade and flavorful liquid! Check out my Marinated Steak recipe here.

Is Hummus Good for Keto?

I wouldn’t recommend hummus for ketogenic lifestyles. Avocado will work much better and has macros perfect for keto.

keto low carb philly cheesesteak in a glass pan

Is This Philly Cheesesteak Casserole Recipe Freezer Friendly?

Yes. I recommend that you remove it from the freezer the night before you plan to eat it. Store it in the fridge overnight so that it defrosts naturally before you reheat.

keto low carb philly cheesesteak on a white plate
keto low carb philly cheesesteak on a white plate

Here are more Keto Dinner Recipes: Keto Spinach and Cheese Stuffed Chicken and Keto Bacon Cheeseburger Casserole.

Looking for Keto Desserts? You may also enjoy my Keto Peanut Butter Cookies, Keto Chocolate Chip Cookies, Keto Pound Cake, and Keto Cheesecake recipes.

I use Butcher Box sirloin steak in this recipe because it is 100% grass-fed beefGrass-fed beef is much leaner and has less total fat. It also has more conjugated linoleic acid (CLA), which is linked to reductions in heart disease and cancer. 

You may also enjoy my Keto Cheeseburger Casserole , Keto Onion Rings, and Bacon Egg Spinach Breakfast Casserole recipes.

FREE printable Keto Grocery Shopping list here.

keto low carb philly cheesesteak in a glass pan
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4.92 from 34 votes

Keto Low-Carb Philly Cheese Steak Casserole

Keto Low-Carb Philly Cheese Steak Casserole is a quick and easy steak dinner recipe with sirloin steak, cream cheese, green bell peppers, and mushrooms. This is the best steak marinade recipe and you can also use flank steak if you wish. If you are looking for sides to pair with your steak, going the casserole route is perfect! Everything in one meal prep friendly dish. 
Save this recipe here.
Course dinner, lunch
Cuisine American
Keyword keto steak, low carb steak, Philly Cheese Steak Casserole
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 6
Calories 387kcal

Ingredients

  • 1 1/2 pounds Butcher Box sirloin steak sliced into thin strips
  • 1 teaspoon Steak Seasoning I like McCormick’s Montreal Steak Seasoning
  • salt and pepper to taste
  • 1 cup sliced green peppers
  • 1 cup mushrooms
  • 1 cup onion, chopped
  • 2 garlic cloves, chopped
  • 2 oz cream cheese
  • 1 teaspoon worcestershire sauce
  • 2 eggs
  • 1/2 cup heavy whipping cream
  • 1/2 cup shredded parmesan reggiano cheese
  • 4-5 slices provolone cheese sliced into small pieces

Instructions

  • Watch the video above for step by step instructions.
  • Preheat oven to 350 degrees. 
  • Add the Butcher Box steak to a skillet on medium-high heat. Season the steak with steak seasoning, salt, and pepper. Cook for 2-3 minutes, flipping both sides of the steak. 
  • Add the green peppers, onion, garlic, and mushroom to the skillet. Cook until the vegetables are soft and the meat is no longer pink.
  • If there is any excess fat in the skillet, drain it. This step is important. If there is excess liquid it will cause the casserole to have a soupy residue underneath.
  • Add the Worcestershire sauce and cream cheese. Cook until the cream cheese has melted.
  • Remove the skillet from heat.
  • In a medium bowl, combine the eggs, shredded parmesan reggiano cheese, and heavy cream.
  • Spray an 8 x 11 or 9×9 baking dish (I used 8 x11) with oil or cooking spray. Pour the steak mixture into the dish. 
  • Drizzle the liquid egg and cheese mixture on top. Top with the provolone cheese slices.
  • Bake for 15-20 minutes or until the cheese begins to bubble. Mine was ready around 18.
  • Cool before serving.

Video

Notes

I recommend parmesan reggiano cheese in this recipe because it has sooooo much flavor! You can substitute parmesan if you wish, but parmesan reggiano is my recommendation.
 
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Nutrition (displayed with net carbs)

Serving: 6g | Calories: 387kcal | Fat: 24g | Protein: 36g | Carbohydrates: 5g
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Nutrition DataMacros are provided as a courtesy and should not be construed as a guarantee. This information is calculated using MyFitnessPal.com. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator. You are solely responsible for ensuring that any nutritional information provided is accurate, complete, and useful.
Recipe Rating




Chris

Friday 6th of May 2022

How thick should the steak be cut?

staysnatched

Thursday 12th of May 2022

However thick you like it. 1/2 inch, 1 inch

Gail Johnson

Thursday 3rd of February 2022

This is the BEST Keto Philly Cheesesteak I have tried yet! Thanks for sharing!

staysnatched

Thursday 3rd of February 2022

You're welcome! I'm glad you enjoyed it.

Kerry

Sunday 23rd of January 2022

This recipe is really flavorful and easy to cook. I am looking for new recipes to add into my lunch and dinner rotation and this one most definitely will be added.

staysnatched

Sunday 23rd of January 2022

I'm glad to hear it will be in the rotation.

Yolo

Thursday 6th of January 2022

I keep looking at this recipe. I'm going to add this to my rotation when I grocery shop again.

staysnatched

Thursday 6th of January 2022

I hope you actually try it.

Mary S Gerdes

Friday 12th of November 2021

What did you serve with it?

Saturday 1st of January 2022

@staysnatched, I think I might try it with chicken. I am not a big fan of Philly cheese steak but I like chicken cheese steaks. I might try 1 less egg and a bit more cream cheese.

staysnatched

Friday 12th of November 2021

Salad.