Keto Seared Beef Steak with Herb Butter

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A perfectly crisp-edged steak finished with a fragrant herb butter sauce, ideal for high-protein keto dinners that cook in under 20 minutes. This american-inspired beef (keto, high-protein) ready in about 23 minutes pairs top sirloin steak, avocado oil, unsalted butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 542 calories and feeds 1, 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.

★ 3.5 (15 ratings) Prep: 15 min Cook: 8 min Serves 1 American cuisine 542 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat the 8 oz steak dry with paper towels, then season evenly with 1/4 tsp sea salt and 1/4 tsp black pepper on both sides.
  2. Step 2: Heat 2 tbsp avocado oil in a heavy skillet over medium-high heat until shimmering and just smoking, about 2 minutes.
  3. Step 3: Place the steak in the skillet, pressing lightly to ensure full contact; sear undisturbed for 3 minutes until a deep brown crust forms on the bottom.
  4. Step 4: Flip the steak, reduce heat to medium, and cook for 3 more minutes for medium-rare, or until the internal temperature reaches 125°F (use a meat thermometer).
  5. Step 5: Remove steak to a plate, tent loosely with foil, and let rest for 5 minutes. Meanwhile, melt 2 tbsp unsalted butter in the same skillet over low heat, stir in 1 tsp chopped rosemary and 1/2 tsp garlic powder, and simmer for 1 minute until fragrant.

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Frequently asked questions

How long does Keto Seared Beef Steak with Herb Butter take to make?

Total time is about 23 minutes (15 min prep + 8 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 Seared Beef Steak with Herb Butter?

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 top sirloin steak from drying out.

Can I substitute ingredients in Keto Seared Beef Steak with Herb Butter?

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 Seared Beef Steak with Herb Butter 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 Keto Seared Beef Steak with Herb Butter 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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