Crispy Garlic-Parmesan Beef Medallions

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

Seared beef medallions coated in a golden garlic-herb Parmesan crust, served with a velvety mushroom sauce, all under 5g net carbs per serving. This american-inspired beef (keto, high protein) ready in about 27 minutes pairs beef tenderloin, extra virgin olive oil, Parmesan cheese for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 485 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.

★ 4.4 (14 ratings) Prep: 15 min Cook: 12 min Serves 2 American cuisine 485 cal/serving
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Ingredients

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Instructions

  1. Step 1: Pat 12 oz beef medallions dry with paper towels; season both sides with 1/4 tsp sea salt and 1/8 tsp black pepper. Heat 2 tbsp olive oil in a skillet over medium-high heat until shimmering.
  2. Step 2: Sear beef medallions for 2 minutes per side until golden-brown edges form and internal temperature reaches 125°F (medium-rare), then transfer to a plate.
  3. Step 3: In the same skillet, melt 1 tbsp butter over medium heat, add 3 minced garlic cloves and sauté for 30 seconds until fragrant but not browned.
  4. Step 4: Add 4 oz sliced mushrooms and cook for 4 minutes until softened and juices evaporate, then stir in 1 tsp chopped thyme.
  5. Step 5: Return beef to skillet, add 2 tbsp heavy cream, and simmer for 2 minutes until sauce thickens slightly and coats the back of a spoon.
  6. Step 6: While sauce simmers, mix 1/4 cup grated Parmesan with 1 tsp thyme; sprinkle evenly over beef medallions and press gently to adhere.
  7. Step 7: Cook for 1 minute more until Parmesan is golden and crisp, then serve immediately.

Frequently asked questions

How long does Crispy Garlic-Parmesan Beef Medallions 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 Crispy Garlic-Parmesan Beef Medallions?

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 Crispy Garlic-Parmesan Beef Medallions?

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 Crispy Garlic-Parmesan Beef Medallions 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 Crispy Garlic-Parmesan Beef Medallions keto?

Yes — this recipe is tagged keto, high protein, 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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