Irresistibly Easy Keto Pepper Steak Low Carb Beef Stir Fry
There’s nothing like the enticing aroma of sizzling beef paired with the crunchy bite of fresh vegetables to lift your spirits! Recently, I found myself yearning for a vibrant, quick meal that wouldn’t derail my low-carb lifestyle. Enter my Quick Keto Chinese Pepper Steak Stir Fry. This delightful dish combines the rich, umami flavors of soy sauce and tender sirloin steak with the crisp sweetness of bell peppers and earthy mushroomsโall coming together in just under 30 minutes!
Perfect for those bustling weeknights when time is short but your cravings for something hearty are high, this recipe is designed to be easy and fulfilling. Whether you’re trying to keep things low-carb, gluten-free, or simply want to treat yourself to an Asian-inspired feast, this stir fry checks all the boxes. So, grab your skillet and let’s dive into a meal that’s sure to become a favorite!

Why is Keto Pepper Steak a Must-Try?
Quick preparation: This recipe comes together in under 30 minutes, making it perfect for busy weeknights.
Bold flavors: A blend of soy sauce and fresh vegetables creates a vibrant taste thatโs hard to resist.
Low-carb goodness: Ideal for keto dieters, it fits seamlessly into your healthy meal plan.
Versatile options: Feel free to substitute sirloin with flank steak or mix in different low-carb veggies.
Crowd-pleaser: Friends and family will be clamoring for secondsโyou might want to make a double batch!
Dive into this delicious dish; itโs not just a meal but an experience!
Keto Pepper Steak Ingredients
For the Stir Fry
โข Sesame Oil or Avocado Oil โ Adds a rich flavor; avocado oil is a great neutral substitute.
โข Sirloin Steak โ Cut into thin strips for quick cooking; flank steak is also a budget-friendly alternative.
โข Garlic โ Provides aromatic depth; use fresh for the best impact or powdered garlic as a substitute.
โข Salt and Pepper โ Basic seasonings; adjust according to your taste preferences.
โข Green Bell Pepper โ Adds both crunch and color; feel free to substitute with red or other low-carb veggies.
โข Onion โ Sweetness and a flavor base; shallots or green onions work well as alternatives.
โข Beef Broth โ Forms the sauce foundation, adding richness; chicken or vegetable broth can be used too.
โข Soy Sauce or Tamari โ Provides umami flavor; tamari is a gluten-free option.
โข Mushrooms โ They help absorb sauce flavor; can be omitted or replaced with other low-carb vegetables.
โข Xanthan Gum (optional) โ Used as a thickening agent for the sauce; consider almond flour or coconut flour as alternatives.
โข Baby Corn (optional) โ Adds sweetness while keeping carbs low; avoid if aiming for minimal carbs.
This recipe for Keto Pepper Steak Low Carb Beef Stir Fry checks all the boxes for a quick, flavorful dinner enjoyed by the whole family.
How to Make Keto Pepper Steak
Heat the oil: Start by heating sesame or avocado oil in a large skillet or wok over medium-high heat. This ensures a great sizzle when you add the beef.
Add beef and garlic: Toss in the thin strips of sirloin steak along with minced garlic. Cook until the beef is nicely browned, about 3-4 minutes, stirring occasionally for even cooking.
Remove and season: Once browned, carefully remove the beef from the skillet and keep it warm. Season with salt and pepper to enhance its flavors while you prepare the veggies.
Stir-fry the vegetables: Add chopped green bell pepper and onion to the skillet. Stir-fry for about 3-5 minutes until theyโre tender but still slightly crunchy and vibrant in color.
Create the sauce: Pour in the beef broth and soy sauce (or tamari) along with mushrooms, xanthan gum, and baby corn if using. Cook for an additional 2-3 minutes until everything is well combined and sauce thickens slightly.
Combine everything: Add the cooked beef back into the skillet. Heat through for a few minutes, letting all those wonderful flavors meld together.
Serve and enjoy: Spoon the Keto Pepper Steak over cauliflower fried rice, kelp noodles, or enjoy it as is, savoring every spicy bite!
Optional: Garnish with sesame seeds or sliced green onions for an extra pop of flavor.
Exact quantities are listed in the recipe card below.

Make Ahead Options
These Keto Pepper Steak Low Carb Beef Stir Fry prep tips are perfect for busy home cooks! You can slice the sirloin steak and marinate it overnight (up to 24 hours) for enhanced flavor; be sure to store it in an airtight container to maintain freshness. The vegetables can also be chopped ahead of timeโjust refrigerate the bell pepper, onion, and mushrooms separately, and they’ll stay crisp for up to 3 days. To finish cooking, simply follow the stir-fry instructions, starting with the marinated beef and then adding your prepped vegetables. Trust me, prepping in advance will save you time and provide just as delicious results!
Keto Pepper Steak Variations
Feel free to get creative with this delectable dish and customize it to fit your specific tastes!
Dairy-Free: Omit any dairy ingredients; the dish remains just as rich and flavorful without it.
Veggie Boost: Add zucchini, mushrooms, or broccoli for an extra layer of nutrition and color. Theyโll absorb the delicious sauce beautifully!
Spicy Kick: Toss in sliced jalapeรฑos or red pepper flakes to elevate the heat level to your liking. This adds a delightful warmth!
Sweetness Introduced: Use a splash of sugar-free sweetener or a drizzle of sesame oil for a sweet-savory combination thatโs irresistible!
Ground Beef: Substitute sirloin steak for ground beef for a convenient twist. It cooks up quickly and absorbs flavors just as well!
Coconut Aminos Swap: Swap soy sauce for coconut aminos for a soy-free alternative that maintains the umami flavor.
Frying with Flavor: Add a bit of ginger along with the garlic for a fragrant, zesty addition that enhances the Asian flavor profile.
Nutty Crunch: Garnish with chopped peanuts or cashews to add a delightful crunch and nutty flavor that complements the dish.
Enjoy exploring these variations, and turn this dish into your own unique masterpiece!
How to Store and Freeze Keto Pepper Steak
Fridge: Store leftovers in an airtight container for up to 3 days. This keeps your delicious Keto Pepper Steak fresh and ready for quick meals.
Freezer: Freeze in a well-sealed container or freezer bag for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating: For the best results, reheat on the stovetop over medium heat, adding a splash of broth or water to maintain moisture and flavor.
Room Temperature: Avoid leaving out for more than 2 hours to prevent spoilage and ensure food safety.
What to Serve with Keto Pepper Steak?
Looking to create a memorable meal experience around your delightful stir fry? Letโs explore perfect pairings that enhance every bite!
Cauliflower Fried Rice: This low-carb alternative mimics the texture of traditional fried rice, soaking up the savory sauce beautifully.
Simple Green Salad: A fresh salad with crisp greens and a light vinaigrette adds a refreshing contrast to the robust flavors of the steak.
Garlic Roasted Broccoli: The slight bitterness of roasted broccoli complements the sweet elements of the stir fry, adding a crunchy texture thatโs hard to resist.
Zucchini Noodles: These noodles offer a fun, low-carb twist, providing a light base to carry the mouthwatering flavors of the steak.
Sesame Green Beans: This side provides a crunchy, nutritious option while enhancing the Asian theme of your meal.
Chilled Cucumber Salad: The coolness of cucumbers adds a hydrating and refreshing element that balances the warm, hearty stir fry.
Miso Soup: A warm bowl of miso soup serves as a comforting starter, preparing your palate for the robust flavors of the main dish.
Sparkling Water with Lime: A refreshing drink that cleanses the palate, ensuring every bite of the Keto Pepper Steak is just as exciting as the last.
Embrace these side options to elevate your dinner and enjoy a symphony of flavors!
Expert Tips for Perfect Keto Pepper Steak
Marinate for Flavor: Consider marinating the beef in soy sauce and garlic for 15-30 minutes for even richer flavors in your Keto Pepper Steak.
Use High Heat: Cooking at a high temperature is crucial for achieving that perfect stir-fry texture. Keep the skillet uncovered to allow excess moisture to evaporate.
Avoid Overcrowding: To ensure a perfect sear on your beef, avoid overcrowding the skillet. Cook in batches if necessary for optimal texture.
Choose Fresh Vegetables: Fresh veggies add crunch and flavor. Using frozen vegetables may make the dish watery, so stick to fresh when possible.
Watch Sauce Thickness: If the sauce is too watery, sprinkle xanthan gum gradually to thicken it without clumping in your Keto Pepper Steak.
Feel Free to Customize: Experiment with different low-carb veggies like broccoli or zucchini to make the dish your own!

Keto Pepper Steak Recipe FAQs
What type of beef should I use for Keto Pepper Steak?
Absolutely! For the best results, sirloin steak is recommended because it cooks quickly and remains tender. However, flank steak is a great budget-friendly alternative. Cut the beef into thin strips to ensure even cooking and maximum flavor absorption.
How long can I store leftovers of Keto Pepper Steak?
Very! Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. I often make extra, and it makes for quick meals later on. Just make sure to reheat it thoroughly on the stovetop to retain its delicious flavors.
Can I freeze Keto Pepper Steak?
Of course! To freeze, let the dish cool completely, then transfer it to a well-sealed container or freezer bag, making sure to remove as much air as possible. It can stay in the freezer for up to 2 months. When you’re ready to enjoy it, simply thaw it overnight in the refrigerator before reheating on the stovetop.
How can I avoid a watery sauce in my stir-fry?
To achieve a thicker sauce, ensure your vegetables are cooked off adequately to prevent excess water. If needed, gradually add xanthan gum while stirring, as this will create a silky texture without clumping. I recommend doing this gradually and stirring well for optimal results!
Are there any dietary considerations for this dish?
Absolutely! This Keto Pepper Steak is designed to be low-carb and gluten-free, especially if you opt for tamari instead of soy sauce. If youโre cooking for someone with allergies, be sure to check all ingredient labels. If you have pets, avoid any spices or ingredients that arenโt safe for animals, such as garlic, in meals they could access.
Can I add more vegetables to this recipe?
The more, the merrier! Feel free to include other low-carb vegetables like broccoli, zucchini, or cauliflower to increase the dish’s nutrition. Just remember to adjust cooking times accordingly as different veggies may require more or less time to become tender and flavorful!

Irresistibly Easy Keto Pepper Steak Low Carb Beef Stir Fry
Ingredients
Equipment
Method
- Heat the oil: Start by heating sesame or avocado oil in a large skillet or wok over medium-high heat.
- Add beef and garlic: Toss in the thin strips of sirloin steak along with minced garlic. Cook until the beef is nicely browned, about 3-4 minutes.
- Remove and season: Once browned, carefully remove the beef from the skillet and keep it warm. Season with salt and pepper.
- Stir-fry the vegetables: Add chopped green bell pepper and onion to the skillet. Stir-fry for about 3-5 minutes.
- Create the sauce: Pour in the beef broth and soy sauce (or tamari) along with mushrooms, xanthan gum, and baby corn if using.
- Combine everything: Add the cooked beef back into the skillet. Heat through for a few minutes.
- Serve and enjoy: Spoon the Keto Pepper Steak over cauliflower fried rice or enjoy it as is.





