Sautéed Beef with Mushrooms and Sour Cream

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Tender beef strips cooked with earthy mushrooms in a rich sour cream sauce, finished with fresh garlic and herbs. This american-inspired beef (keto) ready in about 30 minutes pairs Beef sirloin, Mushrooms, Garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, 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 (12 ratings) Prep: 10 min Cook: 20 min Serves 4 American cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 1 tbsp olive oil and 2 tbsp butter in a large skillet over medium-high heat until butter melts and foams.
  2. Step 2: Add 12 oz beef strips and cook for 3-4 minutes per side until browned, then transfer to a plate.
  3. Step 3: Add 8 oz sliced mushrooms and 2 minced garlic cloves to the skillet, sautéing for 3-4 minutes until mushrooms release liquid and brown.
  4. Step 4: Return beef to skillet with 1/2 tsp salt and 1/4 tsp black pepper, stirring to combine.
  5. Step 5: Reduce heat to medium, stir in 3 tbsp sour cream, and cook for 1-2 minutes until sauce thickens and coats the beef, stirring constantly.

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Frequently asked questions

How long does Sautéed Beef with Mushrooms and Sour Cream take to make?

Total time is about 30 minutes (10 min prep + 20 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 Sour Cream?

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 Sour Cream?

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 Sour Cream for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Sour Cream keto?

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

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