Pan-Seared Beef Steak with Garlic Butter and Mushrooms

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

Juicy beef steak seared to perfection and finished with a rich garlic butter sauce, accompanied by sautéed mushrooms for a classic keto meal. This american-inspired beef (keto) ready in about 20 minutes pairs beef steak, butter, garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 660 calories and feeds 1, 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.

★ 4.4 (10 ratings) Prep: 5 min Cook: 15 min Serves 1 American cuisine 660 cal/serving
Build a week of meals around this recipe → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Cookware & pots → Shop all kitchen tools →

Instructions

  1. Step 1: Pat 8 oz beef steak dry with paper towels, then season with 1/2 tsp salt and 1/4 tsp black pepper.
  2. Step 2: Heat 1 tsp olive oil in a skillet over medium-high heat until shimmering.
  3. Step 3: Add beef steak and cook for 3-4 minutes per side for medium-rare, or until desired doneness.
  4. Step 4: Remove steak and let rest for 5 minutes.
  5. Step 5: In the same skillet, melt 2 tbsp butter over medium heat, then add 2 minced garlic cloves and cook for 30 seconds until fragrant.
  6. Step 6: Add 4 oz sliced mushrooms and cook for 5 minutes until tender and golden.
  7. Step 7: Slice steak and serve with mushroom sauce.

Frequently asked questions

How long does Pan-Seared Beef Steak with Garlic Butter and Mushrooms take to make?

Total time is about 20 minutes (5 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 Pan-Seared Beef Steak with Garlic Butter and Mushrooms?

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 steak from drying out.

Can I substitute ingredients in Pan-Seared Beef Steak with Garlic Butter and Mushrooms?

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 Pan-Seared Beef Steak with Garlic Butter and Mushrooms for a different number of people?

The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). 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 Pan-Seared Beef Steak with Garlic Butter and Mushrooms 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.

What others are saying

Related recipes