Sautéed Beef with Mushrooms and Green Beans

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

Tender beef strips cooked in a rich garlic-herb butter sauce with crisp-tender green beans and earthy mushrooms. This American-inspired beef recipe (low-carb), ready in about 27 minutes, pairs beef sirloin, mushrooms, green beans for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 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: 12 min Serves 2 American cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: Slice 10 oz beef sirloin against the grain into 1/4-inch strips. Pat dry with paper towels to ensure a good sear.
  2. Step 2: Heat 2 tbsp avocado oil in a large skillet over medium-high heat until shimmering. Add 10 oz beef strips and cook for 3-4 minutes, stirring occasionally, until browned but still slightly pink inside.
  3. Step 3: Remove beef from skillet and set aside. Add 1 cup sliced mushrooms and 2 cups trimmed green beans to the skillet. Sauté for 5 minutes until beans are crisp-tender and mushrooms release their liquid.
  4. Step 4: Return beef to skillet, add 3 minced garlic cloves, 1 tsp fresh thyme, 1 tbsp unsalted butter, 1/4 tsp salt, and 1/4 tsp black pepper. Stir constantly for 2 minutes until garlic is fragrant and butter is melted.

Frequently asked questions

How long does Sautéed Beef with Mushrooms and Green Beans take to make?

Total time is about 27 minutes (15 min prep + 12 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 Sautéed Beef with Mushrooms and Green Beans?

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 beef sirloin from drying out.

Can I substitute ingredients in Sautéed Beef with Mushrooms and Green Beans?

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 Sautéed Beef with Mushrooms and Green Beans 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 Sautéed Beef with Mushrooms and Green Beans low-carb?

Yes — this recipe is tagged 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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