High-Protein Keto Beef & Vegetable Stir-Fry

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

A lightning-fast keto meal packed with lean beef and vibrant vegetables, finished with a savory coconut aminos glaze for post-workout recovery without the carbs. This beef recipe (keto, high-protein), ready in about 30 minutes, pairs Flank steak, Avocado oil, Garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 410 calories and feeds 2, 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 2 410 cal/serving
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Ingredients

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Instructions

  1. Step 1: Slice 12 oz flank steak into 1/4-inch thick strips against the grain. Mince 3 garlic cloves and 1 tbsp fresh ginger.
  2. Step 2: Heat 1 tbsp avocado oil in a large skillet over medium-high heat. Add the sliced beef and cook for 2-3 minutes per side until browned but not fully cooked, then remove and set aside.
  3. Step 3: Add the remaining 1 tbsp avocado oil to the skillet. Add the minced garlic (3 cloves) and minced ginger (1 tbsp), and stir-fry for 30 seconds until fragrant and golden.
  4. Step 4: Add 2 cups broccoli florets, 1 sliced bell pepper, and 1/2 sliced onion. Stir-fry for 4-5 minutes until vegetables are crisp-tender and edges slightly charred.
  5. Step 5: Return the beef to the skillet. Add 2 tbsp coconut aminos, 1 tsp sesame oil, 1/2 tsp salt, and 1/4 tsp black pepper. Toss for 2-3 minutes until sauce thickens and coats the beef and vegetables evenly.

Frequently asked questions

How long does High-Protein Keto Beef & Vegetable Stir-Fry 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 High-Protein Keto Beef & Vegetable Stir-Fry?

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 from drying out.

Can I substitute ingredients in High-Protein Keto Beef & Vegetable Stir-Fry?

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 High-Protein Keto Beef & Vegetable Stir-Fry for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). 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 High-Protein Keto Beef & Vegetable Stir-Fry keto?

Yes — this recipe is tagged keto, 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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