Herb-Crusted Beef Tenderloin with Garlic Butter

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Succulent beef tenderloin coated in a fragrant herb crust, served with a rich garlic butter sauce that melts into the meat for an elegant keto dinner. This american-inspired beef (keto) ready in about 45 minutes pairs Beef tenderloin, Fresh thyme, Fresh rosemary for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 520 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.

★ 3.9 (8 ratings) Prep: 25 min Cook: 20 min Serves 4 American cuisine 520 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat the beef tenderloin dry with paper towels, then season evenly with sea salt and black pepper.
  2. Step 2: Mix thyme, rosemary, garlic powder, and 1 tbsp olive oil into a paste, then rub generously over the entire surface of the beef.
  3. Step 3: Heat 2 tbsp olive oil in an oven-safe skillet over medium-high heat until shimmering, then sear the beef on all sides for 2-3 minutes until golden brown.
  4. Step 4: Transfer the skillet to a 400°F (200°C) oven and roast for 15-18 minutes until internal temperature reaches 125°F (52°C) for medium-rare.
  5. Step 5: While beef rests, melt butter in the skillet over medium heat, add minced garlic, and cook for 60 seconds until fragrant but not browned.
  6. Step 6: Slice beef and drizzle with garlic butter sauce before serving.

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Frequently asked questions

How long does Herb-Crusted Beef Tenderloin with Garlic Butter take to make?

Total time is about 45 minutes (25 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 Herb-Crusted Beef Tenderloin with Garlic 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 beef tenderloin from drying out.

Can I substitute ingredients in Herb-Crusted Beef Tenderloin with Garlic 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 Herb-Crusted Beef Tenderloin with Garlic Butter 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 Herb-Crusted Beef Tenderloin with Garlic Butter 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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