Keto Philly Cheesesteak


Looking for a Philly Cheesesteak keto style? Look no more! This is our favorite go-to when we get the craving. If you are looking for a keto Philly Cheesesteak casserole this can easily be turned into that too! Just forget the bun and put the cheese on the top at the end. Easy peasy! This meal is versatile! Make the steak ahead and marinate for as long as you want. When you are ready, just follow the directions, throw the ingredients in the oven for a quick casserole or saute it up in the pan. Then either plate it up or put it on a keto-friendly hot dog bun for a classic keto steak and cheese.

Keto Steak Ideas

My husband’s favorite part about keto is all the steak we get to eat! If you haven’t tried any of our other steak meals, you need to! Here are our top favorites

  1. Ginger and Soy Steak – O.M.G it’s so good! Make sure you put the juices in a dish for dipping after!
  2. Garlic and Thyme Steak – Juicy and loaded with flavor!
  3. Panfried Steak with Green Onion and Garlick Butter. My favorite part about this recipe is creating your own garlic butter. I know that sounds silly but it makes me feel fancy and is such an easy thing to do. I can’t believe I’d never done it before.

Is Steak and Cheese Keto?

This Keto Steak and Cheese is high in carbs. Per serving it measures 19 grams of carbs but only 11 net carbs. We have this ON OCCASION. Where do the carbs come from? The balsamic vinegar is loaded with carbs! The original recipe we started with used twice as much marinade ingredients so we scaled way back. Some other options for marinade could be Worcestershire sauce and soy sauce but we love this one so much we keep it as is. If you have a better marinade option, we’d love to hear it!

Keto Philly Cheesesteak

Keto Philly Cheesesteak

The best Philly Cheesesteak, keto style there is! Have it as a Keto Philly Cheesesteak Casserole or a sub!
Prep Time: 15 minutes
Cook Time: 15 minutes
Marinating: 1 hour
Total Time: 1 hour 30 minutes
Course: Dinner, Lunch
Cuisine: American
Keyword: steak
Servings: 2 Servings
Calories: 863kcal



  • Cup Dijon mustard
  • ¼ Cup balsamic vinegar
  • ½ tsp minced garlic
  • Cup extra-virgin olive oil
  • Salt and freshly ground black pepper

Philly Cheesesteak

  • 1 Pound Sirloin Steak thinly sliced
  • ½ Medium Green Pepper sliced
  • ¼ Medium Onion 1/4 inch slices
  • ½ Pound fresh mozzarella cheese sliced
  • 2 Thin Slim Hot Dog Bun


  • Mix together all ingredients for the marinade and set aside. You can use a bowl or a plastic bag.
  • Use leftover steak or fresh/raw steak.
  • If steak is raw, brown on each side for 3-4 minutes and let rest.
  • If steak is already cooked, let stand at room temperature for at least 5 minutes.
  • Thinly slice the steak.
    Keto Steak and Cheese sliced steak
  • Add steak to marinade and evenly coat. Set aside in refrigerator for at least one hour.
  • Thinly slice green peppers and onions.
  • Thinly slice fresh mozzarella and set aside.
  • Heat medium sized frying pan over medium high heat.
  • Add spray or 1 tsp olive oil to the pan and add green peppers and onions.
  • Saute onions and peppers until tender
  • Add marinaded steak to the pan and mix all ingredients together.
  • Lightly stir until the meat is heated through and no longer pink (about 5 minutes)
  • Add fresh mozzarella and mix together until completely melted.
  • Serve as is in a dish or on a keto friendly roll.
    Keto Philly Cheesesteak



This meal can be served as a Keto Philly Cheesesteak casserole or on a keto-friendly bun.


Calories: 863kcal | Carbohydrates: 19g | Protein: 83g | Fat: 52g | Saturated Fat: 22g | Trans Fat: 1g | Cholesterol: 228mg | Sodium: 1116mg | Potassium: 991mg | Fiber: 8g | Sugar: 7g | Vitamin A: 877IU | Vitamin C: 25mg | Calcium: 654mg | Iron: 5mg
Tried this recipe?Let us know how it was!

What did you think? Was it the best you’ve ever had?

Since I am not a Registered Dietitian or Nutritionist, I use a WordPress plug-in to calculate the nutritional information provided in this recipe card.

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