Keto Black Bean Beef Stir-Fry with Crisp Vegetables

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A savory, umami-packed stir-fry featuring tender flank steak in a low-carb black bean sauce, tossed with crisp bell peppers and broccoli over cauliflower rice. This asian-inspired beef (keto, low-carb) ready in about 35 minutes pairs flank steak, coconut aminos, black bean paste for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 2, 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.

★ 3.8 (15 ratings) Prep: 20 min Cook: 15 min Serves 2 Asian cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: In a medium bowl, combine 12 oz thinly sliced flank steak, 3 tbsp coconut aminos, 2 tbsp black bean paste, 1 tbsp rice vinegar, and 1 tsp sesame oil; toss to coat and marinate for 15 minutes.
  2. Step 2: Heat 1 tbsp avocado oil in a large skillet over medium-high heat until shimmering; add 1/2 cup sliced mushrooms and 1/2 cup sliced bell peppers, stirring for 3 minutes until vegetables begin to soften and release moisture.
  3. Step 3: Add 1/2 cup broccoli florets and 1 tbsp minced garlic to the skillet, cooking for 2 minutes until broccoli is bright green and slightly tender.
  4. Step 4: Push vegetables to the sides of the skillet and add the marinated beef strips in a single layer; cook for 2-3 minutes per side until browned and cooked through, then stir everything together.
  5. Step 5: Add 1 tbsp minced ginger and cook for 30 seconds until fragrant, then serve immediately over 1/4 cup cauliflower rice.

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Frequently asked questions

How long does Keto Black Bean Beef Stir-Fry with Crisp Vegetables take to make?

Total time is about 35 minutes (20 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 Black Bean Beef Stir-Fry with Crisp Vegetables?

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 Keto Black Bean Beef Stir-Fry with Crisp Vegetables?

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 Black Bean Beef Stir-Fry with Crisp Vegetables 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 Keto Black Bean Beef Stir-Fry with Crisp Vegetables 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.

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