A plate of keto beef stir-fry

Beef Stir-Fry – Keto Style

Quick, flavorful, and endlessly adaptable, this Keto Beef Stir-Fry is your new low-carb answer to takeout cravings. It’s loaded with tender strips of beef, crisp vegetables, and a savory, sugar-free stir-fry sauce—all made in one pan in under 30 minutes.

This Keto Beef Stir-Fry meal is high in protein and healthy fats, with just enough carbs from the veggies to keep things balanced. It’s ideal for busy weeknights or meal prep, and it tastes even better the next day. Serve it over cauliflower rice to catch every drop of the bold, umami-rich sauce.


Keto Beef Stir-Fry

🕒 Prep Time: 15 minutes

🔥 Cook Time: 10 minutes

Total Time: 25 minutes

a plate of Keto Beef Stir Fry
📊 Nutrition (per serving — serves 4):
  • Total Carbs: 9g
  • Net Carbs: 6g
  • Fat: 18g
  • Protein: 32g
  • Fiber: 3g
  • Sugar Alcohols: 0g

🛒 Ingredients:

  • 1 lb flank steak or sirloin, thinly sliced against the grain
  • 1 tablespoon coconut oil or avocado oil
  • Salt and pepper to taste
  • 1 red bell pepper, sliced
  • 1 cup broccoli florets
  • ½ small onion, thinly sliced
  • 2 cloves garlic, minced
  • 1 teaspoon fresh grated ginger (or ½ tsp dried)

For the sauce:

  • ¼ cup coconut aminos or tamari
  • 1 tablespoon rice vinegar
  • 1 tablespoon sesame oil
  • ½ teaspoon red pepper flakes (optional)
  • ½ teaspoon xanthan gum (for thickening, optional)

👩‍🍳 Instructions:

  1. Make the sauce
    In a small bowl, whisk together coconut aminos, rice vinegar, sesame oil, red pepper flakes, and xanthan gum (if using). Set aside.
  2. Cook the beef
    Heat oil in a large skillet or wok over high heat. Add sliced beef in a single layer. Sear for 1–2 minutes per side until browned but not overcooked. Remove and set aside.
  3. Sauté the veggies
    In the same pan, add onion, garlic, ginger, bell pepper, and broccoli. Stir-fry for about 4–5 minutes, until just tender.
  4. Combine and finish
    Return the beef to the pan. Pour in the sauce and toss everything together. Cook for 1–2 more minutes until the sauce thickens slightly and everything is evenly coated.
  5. Serve hot
    Plate over cauliflower rice or eat as-is. Garnish with sesame seeds or sliced green onion, if desired.

Savannah’s Keto Beef Stir-Fry

This Keto Beef Stir-Fry is fast, flexible, and full of flavor. The beef brings satisfying protein, while the veggies provide fiber and crunch without weighing the dish down. And the star here? The SAUCE: salty, slightly tangy, and just spicy enough.

You can mix up the vegetables based on what’s in your fridge—green beans, mushrooms, or zucchini all work. And if you’re feeding a crowd, doubling this Keto Beef Stir-fry recipe is easy without much extra prep. It’s a low-effort dinner that tastes like a treat.

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🔁 Looking for more keto dinner inspiration?
← Back to 10 Irresistible Keto Dinners to Keep You in Ketosis

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