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.
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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.
How Do You Make Garlic Butter Steak?
This Garlic Butter Steak from Taste of Home is amazing.
How Do You Make a Juicy Steak?
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.
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.
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.
You may also enjoy my Keto Cheeseburger Casserole , Keto Onion Rings, Lemon Pepper Steak,
and Bacon Egg Spinach Breakfast Casserole recipes.
Keto Low-Carb Philly Cheese Steak Casserole
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.
Pam
Saturday 23rd of November 2024
This is an amazing recipe with such great flavors!!! Thanks for sharing!!! I saw this recipe and made it with leftover tri-tip. I cut the tri-tip in bite size pieces before adding the sauce. It was so very good- my husband and I really enjoyed it!!! Thank you!!! Pam
staysnatched
Sunday 24th of November 2024
You're welcome!
Lisa
Friday 26th of April 2024
I had some sirloin steak in the refrigerator & didn't know what I wanted to make keto with it. I found this receipe & Im so glad I did. Let me tell you. My apartment is smelling so good right now. It came out perfect even with the regular shredded parm. I just sprinkled some pizza parm on top. It's delicious. You better know I'm going for the "good parm" the next time I make this just so I can experience the awesomeness of that particular cheese. Don't think, Please just make this casserole & "You're Welcome :). Mine baked & was beautifully browned at about 23-25 mins.
Thank you for sharing.
Jennifer V
Wednesday 8th of November 2023
This was even better than anticipated! I made this in my Ninja Foodi Airfryer/cooker appliance. So easy and quick! Scaled down to 2 servings. Sautéed the onions and peppers, added mushrooms and sautéed. Added leftover sliced steak, cream cheese, Worcestershire and garlic until fragrant. Turned off, poured on egg mix and topped with mozzarella and cheddar (wish i had provolone). Baked in same appliance for 10 minutes. That cream cheese and Worcestershire sauce really added the flavor! This satisfied the hunger I had. Made 2 servings. Will definately make this again. Thank you!
staysnatched
Friday 10th of November 2023
You're welcome.
Jackie
Monday 25th of September 2023
My husband and I love this recipe! I love the fact that it's easy to make during a busy work week. Thanks!
staysnatched
Tuesday 3rd of October 2023
So glad to hear it!
Jennifer
Monday 14th of August 2023
This was so good, and easy! My hubby hates mushrooms but he ate them in the recipe and didn't say a word lol. I also used some jalepeno for a bit of kick, but still could have used more flavor, so I'll probably ramp up the seasonings next time.