Keto Beef Stir-Fry with Zucchini Noodles and Sesame

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Tender strips of beef quickly stir-fried with fresh zucchini noodles and a savory soy-sesame sauce, perfect for a low-carb dinner. This asian fusion-inspired beef (keto, low carb) ready in about 25 minutes pairs sesame oil, soy sauce (tamari for gluten-free), freshly grated ginger 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 weekly meal plan and pairs well with a quick salad or grain on the side. 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: 10 min Serves 3 Asian Fusion cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 1 tbsp sesame oil in a large wok or skillet over high heat until hot but not smoking. Add 12 oz thinly sliced flank steak seasoned with 1/4 tsp salt, and stir-fry for 2-3 minutes until browned but still tender. Remove beef and set aside.
  2. Step 2: In the same wok, add remaining 1 tbsp sesame oil, 1 tbsp grated fresh ginger, 2 minced garlic cloves, and 1/4 tsp red pepper flakes, stir-frying for 30 seconds until fragrant.
  3. Step 3: Add 3 spiralized medium zucchinis and 3 tbsp soy sauce, tossing quickly to coat and cook for 2 minutes until zucchini noodles soften but retain some bite.
  4. Step 4: Return cooked beef to the wok, add 2 thinly sliced green onions, and stir everything together for 1 minute until heated through.
  5. Step 5: Plate the stir-fry and sprinkle with 1 tbsp toasted sesame seeds before serving.

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Frequently asked questions

How long does Keto Beef Stir-Fry with Zucchini Noodles and Sesame take to make?

Total time is about 25 minutes (15 min prep + 10 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 Beef Stir-Fry with Zucchini Noodles and Sesame?

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 sesame oil from drying out.

Can I substitute ingredients in Keto Beef Stir-Fry with Zucchini Noodles and Sesame?

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 Beef Stir-Fry with Zucchini Noodles and Sesame 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 Beef Stir-Fry with Zucchini Noodles and Sesame keto?

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

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