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.
Table of Contents
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.
Want to save this recipe for later?
I'll email it to you, so you can come back to it later! You will also get our free digital cookbook with 30-Minute One-Pot Recipes and weekly recipes and tips.
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
Want to save this recipe for later?
I'll email it to you, so you can come back to it later! You will also get our free digital cookbook with 30-Minute One-Pot Recipes and weekly recipes and tips.
Equipment
Ingredients
- 1 ½ 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
- ½ cup heavy whipping cream
- ½ 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 9x9 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
Nutrition
Nutrition Data
Macros 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.
Trudy says
I made this tonight and it tasted great but found the beef to be tough. Any recomendation on how to make the beef more tender? I used tenderloin an cut into very thin strips. Other than that the flavour was really good.
staysnatched says
I don’t have this problem, but I would use a tender cut of meat. You can cook it separately and use a meat thermometer to check doneness to ensure you aren’t overcooking it.
Jessica Alvarado says
Soooo good! Quick and easy, using all the staples I had on hand. Thank you for another winning recipe!! ❤️
staysnatched says
You're welcome! I'm glad you enjoyed it!
Elizabeth Fitch says
I have made this twice. Loved it both times. So did my picky hubby. I did it with pork loin instead as that was much cheaper in my neighborhood. Still terrific! Thanks! And, yes, the Worcestershire does add a lot!
staysnatched says
Glad you enjoyed it!
Gera says
Loved it! Another keto recipe that will be added to the rotation. Your recipes are always on point and super easy to make. Thanks for sharing!
staysnatched says
You're welcome. Glad you enjoyed it.
Typhanie says
Even my picky eater loved this! It was so easy to put together!
staysnatched says
Wonderful! So glad to hear it!
Mary Gale-Manuel says
Could u tell me the name of your KETO southern/soul food cookbook, Just about everything u make I love. Please answer asap. And location to purchase it, I've made this keto philly cheese steak casserole, to many times to remember.😁😀😀😁😁🥰🥰🥰🥰🥰😍🤗🤗🤗🤗🤗🤔🤨🙄🙃😬🥩🍗🍖🍠🥟🥠🍤🧀🥪🌮🥞🧇🍔🥓🥚🥯
staysnatched says
I don't have a keto cookbook.
Ashley says
Another fantastic recipe! Perfect for a weeknight meal, easy to put together and still full of flavor. Thank you for sharing!
staysnatched says
Wonderful. Glad you enjoyed it.
Annette Kelley says
Brandi, this recipe is one of my husband's favorites which I thought I would never say. He has been trying diets and giving up after first 10 pounds. He was 370 pounds and now 346. He decided for him to do Keto at Dinner to help me, so I decided to make things I thought he might like.....I take this and put them with Mission low carb Tortillas....talk about good, with a Keto Salsa...and sour cream sometimes even Guacamole. It has become of my favorite dinners. Thank you and my husband thanks you.
staysnatched says
You're both welcome!
Meagan says
My husband loved this recipe and barely left any for the rest of us! Thank you for making the recipe easy to follow and including rationale for each ingredient it helped this novice cook make a successful meal!
staysnatched says
Wonderful! I'm so glad to hear it.
Nikita says
Really tasty & glad I tried it! Simple to make too!
staysnatched says
I'm so glad you enjoyed it!
Heather says
This looks delicious! If it’s anything like your shrimp fettucine with zuchinni noodles, I’m there for it! Can’t wait to try!!
staysnatched says
I hope you enjoy it!
Suzanne says
The recipe looks delicious.
staysnatched says
I hope you enjoy it.
Stacie Reese says
I was wonder since there is egg in the recipes. Does it taste eggy? I am going to make it tonight and was just curious. 🙂
staysnatched says
No.
Mary S Gerdes says
What did you serve with it?
staysnatched says
Salad.
Anonymous says
@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 says
Enjoy!
Yolo says
I keep looking at this recipe. I'm going to add this to my rotation when I grocery shop again.
staysnatched says
I hope you actually try it.
Kerry says
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 says
I'm glad to hear it will be in the rotation.
Gail Johnson says
This is the BEST Keto Philly Cheesesteak I have tried yet! Thanks for sharing!
staysnatched says
You're welcome! I'm glad you enjoyed it.
Chris says
How thick should the steak be cut?
staysnatched says
However thick you like it. 1/2 inch, 1 inch
Terri says
This recipe is absolutely delicious. I am following a Keto diet and was so happy to find this recipe. It is easy and delicious. My husband also loves it. Thank you for sharing this recipe. We will have thus meal more often.
staysnatched says
Wonderful! I'm glad you enjoyed it.
Sheila says
Hi! Thank you for the recipe! Would this be ok with the butcher box Sirloin Tip? I have a hard time finding out to use that cut. Wondering if this could work. Thanx for any input 💜
staysnatched says
Hi I've never tried it, but I assume so.
Sheila says
Edit *** top sirloin cap
Marilyn says
Help! I feel like I need to see your video before trying to make this. But I can't find it anywhere on this post. I see the word VIDEO after the instructions and before the notes. But nothing happens when I touch it. Others mention the video was helpful. Can you please help me find where it is hiding? Thank-you sooo much in advance! The recipe looks amazing!
staysnatched says
It's at the top of the post. You have to click the Play button. You can also watch here on Youtube. https://www.youtube.com/watch?v=Ae6AQDYkqnY&t=3s
Anonymous says
We just make cheesesteaks in a frying pan without making it into a casserole -- so no eggs, cream or Worcestershire sauce. We also add onion and hot peppers when we can find organic ones.
S says
We just make cheesesteaks in a frying pan without making it into a casserole — so no eggs, cream or Worcestershire sauce. We also add onion and hot peppers when we can find organic ones.
staysnatched says
Thanks for sharing.
Cay van De Voort says
Would be good without the meat!
staysnatched says
I love it the way it is.
Christene says
Made this last night, only thing I changed was that I used canned mushrooms. It was a little bland so I will add more seasonings next time but it was fabulous! I used Steakumms for the steak and although it fell apart while cooking still worked out.
Jim says
I didn't have steak available, so I tried it with ground beef. It was excellent. I will make it again with steak when I have some available.
staysnatched says
Awesome!
Jennifer says
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.
Jackie says
My husband and I love this recipe! I love the fact that it's easy to make during a busy work week. Thanks!
staysnatched says
So glad to hear it!
Jennifer V says
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 says
You're welcome.
Lisa says
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.
Pam says
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 says
You're welcome!