Keto Asian Stir-Fry with Flank Steak and Broccoli

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A low-carb keto stir-fry featuring thin strips of flank steak and crisp broccoli tossed in a savory garlic-ginger sauce. This asian-inspired keto (low carb) ready in about 30 minutes pairs flank steak strips, broccoli florets, sesame oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 3, so it slots cleanly into a low-carb week and pairs well with cauliflower rice or roasted green vegetables. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 15 min Serves 3 Asian cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: Heat 1 tbsp sesame oil in a large wok or skillet over high heat until shimmering. Add 12 oz thinly sliced flank steak strips and stir-fry for 3-4 minutes until browned and just cooked through. Remove beef and set aside.
  2. Step 2: Add remaining 1 tbsp sesame oil to the wok and add 3 cups broccoli florets. Stir-fry for 3 minutes until bright green and tender-crisp.
  3. Step 3: Add 4 minced garlic cloves and 1 tbsp grated fresh ginger to the broccoli, stir-frying for 30 seconds until fragrant.
  4. Step 4: Return beef to the wok, then stir in 3 tbsp soy sauce, 1 tbsp rice vinegar, 1 tsp erythritol, and 1/4 tsp red pepper flakes. Toss everything together for 1-2 minutes until the sauce thickens slightly and coats the beef and broccoli.
  5. Step 5: Remove from heat and garnish with 1/4 cup chopped green onions and 1 tbsp toasted sesame seeds before serving.

Frequently asked questions

How long does Keto Asian Stir-Fry with Flank Steak and Broccoli take to make?

Total time is about 30 minutes (15 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Keto Asian Stir-Fry with Flank Steak and Broccoli?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep flank steak strips from drying out.

Can I substitute ingredients in Keto Asian Stir-Fry with Flank Steak and Broccoli?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Keto Asian Stir-Fry with Flank Steak and Broccoli for a different number of people?

The recipe is written for 3 servings. Multiply each ingredient by (your serving target / 3). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Keto Asian Stir-Fry with Flank Steak and Broccoli keto?

Yes — this recipe is tagged keto, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.