Keto Mongolian Beef (P.F. Chang's Copycat)

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My keto Mongolian beef is a flavorful main that would satisfy anyone’s appetite. The sauce is made from the unbeatable combination of coconut aminos, fresh garlic, and ginger. In other words, this recipe is a guaranteed repeat!

overhead shot of serving of keto mongolian beef with side of cauliflower rice.

Why you’ll love this keto Mongolian beef recipe

Savory and crave-able: This keto Mongolian beef is beyond tasty; your family will be requesting it week after week!
Quick recipe: This dish comes together in under 30 minutes, easily fitting into your weeknight routine.
Authentic flavor: The combination of garlic, ginger, and coconut aminos makes for a delicious, authentic flavor profile.
Copycat recipe: This recipe tastes just like PF Chang's Mongolian beef without any of the high-carb additives!

overhead shot of cooked flank steak in a skillet garnished with green onions and sesame seeds.

Ingredients needed

Here are all the ingredients that go into my authentic keto Mongolian beef recipe:

Flank steak

The base of this dish is thinly sliced flank steak. You can swap for any cut of beef you prefer, though flank steak gives the most authentic texture.

Coconut aminos

For a salty, umami flavor, I add a healthy bout of coconut aminos to my Mongolian beef sauce. Tamari or gluten-free soy sauce can also be used in a pinch.

The rest of the sauce is thinned out with equal parts water.

Erythritol

To sweeten the dish, I use erythritol. Feel free to use your favorite low-carb sweetener.

Garlic and ginger

Arguably, the most important ingredients in this dish are fresh minced garlic and ginger. These flavor enhancers totally make the dish!

Olive oil

To grill the flank steak, I like to use a bit of olive oil. This also adds some additional fat content (your macros will thank you!).

Green onion and sesame seeds

Green onion and sesame seed garnishes complete this recipe, adding bright and nutty flavors.

Cauliflower rice

Cauliflower rice is always a great base for dishes like this because it soaks up all of the delicious sauce. It’s optional, but I highly recommend it.

overhead shot of ingredients to make keto mongolian beef.

Cooking tips

Use more or less sweetener depending on your flavor preference.
Don’t overcook your beef; it’ll get chewy fast!
Enhance your recipe by including the optional garnishes. Green onion brings a necessary brightness, while sesame seeds add a nutty crunch.

How to make keto Mongolian beef

Ready to get cooking? Here’s how to make this easy keto Mongolian beef:

Step 1: Prep the sauce

First up, we’re going to prep our delicious Mongolian beef sauce!

Add coconut aminos, water, erythritol, garlic, and ginger to a small mixing bowl. Whisk everything up until combined.

mongolian beef sauce in a small glass bowl with a whisk in it.

Step 2: Brown your flank steak

Next, the flank steak.

Heat a bit of olive oil in a cast iron skillet. Then, add your thinly sliced flank steak and brown.

sliced flank steak pieces on a white plate before cooking.

overhead shot of flank steak cooking in a cast iron skillet.

Step 3: Combine and cook

Reduce the heat and pour your sauce over the cooked flank steak, stirring to ensure each piece is totally coated.

adding the sauce to the flank steak in the skillet.

Cook until the sauce thickens and is coating the steak.

flank steak cooking with the sauce in a cast iron skillet.

Step 4: Garnish and serve keto Mongolian beef

Remove from the stovetop, and your dish is ready to serve! You can enjoy your keto Mongolian beef right out of the cast iron skillet (be careful - it’s hot!).

Remember to top with sesame seeds and chopped green onions for extra flavor.

cooked keto mongolian beef in a skillet garnished with green onions and sesame seeds.

How to serve keto Mongolian beef

You can eat this dish as is, though I love serving it over cauliflower rice to soak up all of the yummy sauce!

You can also top this dish with an additional protein source like a fried egg or even a keto Mayak egg.

Finally, for extra nutritional value, add a side of keto vegetables like my easy oven-roasted vegetables.

mongolian beef with cauliflower rice on a white plate.

Variations

Add low-carb vegetables like green beans or broccoli to your stir fry.
Include hot peppers or cayenne pepper for a spicy kick.
Try this recipe with different cuts of beef, depending on your preference.

close-up shot of mongolian beef with cauliflower rice on a white plate.

FAQs

Have more questions about my keto Mongolian beef recipe? I’m here to help! If you have any more questions for me, please leave them in the comments below.

What makes Mongolian beef a keto recipe?

In its authentic form, Mongolian beef is almost keto-friendly. A few things fall short:

1. It’s sweetened with high-carb sweeteners.

2. It includes soy sauce, which is made with wheat, a non-keto ingredient.

3. Often, the sauce is thickened with high-carb cornstarch or flour.

To make this recipe low-carb, I substitute soy sauce with coconut aminos and sugar with erythritol.

Is keto Mongolian beef gluten-free?

My Mongolian beef recipe is 100% gluten-free and suitable for celiacs.

Please note the ingredients list on all packaged products, particularly the coconut aminos. While they are naturally gluten-free, you’ll want to be sure there is no chance of cross-contamination through the manufacturer.

How can I thicken keto Mongolian beef sauce?

Usually, we use cornstarch or flour roux to thicken a sauce. On a keto diet, however, neither of these options works!

Instead, you can use a tiny bit of xanthan gum to help thicken your Mongolian beef sauce if necessary. While it looks suspiciously like corn starch, xanthan gum is low-carb and keto-friendly.

Can I add vegetables to keto Mongolian beef?

You can absolutely add some tasty low-carb vegetables to this dish. In fact, I recommend it!

Keto vegetables like broccoli, bell peppers, green beans, and bean sprouts would all make great additions to this dish. Be sure to cook them in your prepared sauce for the best flavor.

If you want to add sneaky vegetables to this dish, a bed of cauliflower rice when serving is your best option; the texture is so similar to rice, especially when topped with the beef.

close-up shot of keto mongolian beef on a plate.

Like this keto Mongolian beef recipe? Try these!

Want more savory keto recipes? Check out some of my favorite dinner dishes:

Keto Seafood Paella is inspired by transitional Spanish paella, made with chorizo, seafood, and flavorful spices.
Mississippi Mud Roast has a mouthwatering dark and savory gravy.
Keto Chinese Pepper Steak is packed full of low-carb veggies for a nutritious meal option.
Korean Beef Bulgogi is made with tender, thinly sliced beef and an umami sauce.
Pumpkin Lasagna Recipe with Spinach includes layers of cheesy goodness and seasoned ground beef.

Keto Mongolian Beef (P.F. Chang's Copycat)

Why you’ll love this keto Mongolian beef recipe