1 net carb

Beef tenderloin roast

This low-carb beef tenderloin roast is elegant, flavorful, and easy to make, perfect for holiday gatherings or any special occasion.

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Beef tenderloin roast

Close-up of sliced low-carb beef tenderloin roast served on a white platter, next to a bowl of low-carb horseradish sauce and fresh rosemary.

Low-carb Beef tenderloin roast [Keto]

Total Diabetes Wellness
Our low-carb beef tenderloin roast is a perfect centerpiece for any special occasion, especially during the holidays. This recipe combines tender, juicy beef with a simple seasoning of salt, pepper, and garlic herb butter, making it elegant and easy to cook. Whether planning a festive Thanksgiving or Christmas dinner or wanting to treat your family to something special, this roast delivers flavor and presentation. It’s a satisfying and healthy option that’s sure to impress your guests without adding extra carbs to the menu.
Prep Time 1 hour
Cook Time 30 minutes
Rest Time 10 minutes
Total Time 1 hour 40 minutes
Course Lunch and Dinner
Cuisine American
Servings 10 servings
Net Carbs 1 g
*Net carbs are per serving

Ingredients
 

Beef tenderloin roast

  • 4-5 pound beef tenderloin roast, trimmed and tied
  • 2 teaspoons salt
  • 1 teaspoon black pepper
  • 2 tablespoons olive oil

Garlic herb butter

  • 6 tablespoons butter, softened
  • 6 cloves garlic, minced
  • 1 teaspoon fresh rosemary, finely chopped

Instructions
 

  • Remove the beef tenderloin from the fridge and set it on the counter for 1 to 2 hours before cooking to let it come to room temperature.
  • Preheat your oven to 425F/220C.
    Close-up view of temperature knob on an oven, preheat oven to cook a meal.
  • In a small bowl, combine the butter, garlic, and rosemary. Set aside.
    Top-view of garlic and herb butter mixed in a small glass bowl.
  • Tie your beef tenderloin with kitchen twine (if your butcher hasn’t already tied it). Pat the tenderloin dry with paper towels. Season all sides with salt and pepper.
    Top view of beef tenderloin roast on a plate seasoned with salt and pepper.
  • In a large oven-proof skillet, heat the oil over medium-high heat. Once hot, add the beef tenderloin and sear on all sides for 3 to 5 minutes per side, creating a golden-brown crust.
    Top view of a beef tenderloin roast in a skillet to sear the sides to golden brown.
  • Slather the butter mixture over the beef tenderloin and insert a probe thermometer. Transfer the skillet to the oven.
    Top-view of a low-carb beef tenderloin roast in a skillet, topped with garlic and herb butter.
  • Roast the beef tenderloin until it reaches the desired internal temperature, about 15 to 20 minutes. *See the temperature notes below.
  • Remove the beef tenderloin from the oven and transfer it to a cutting board. Let it rest for 10 to 15 minutes to allow the juices to redistribute.
    Top view of a low-carb beef tenderloin roast cooked in the oven, resting on a cutting board.
  • Remove the twine, and slice into 1” thick pieces. Serve with horseradish sauce. Enjoy!
    Top-view of slicing a low-carb beef tenderloin roast after roasting in the oven.
Keywords garlic beef tenderloin, Keto beef tenderloin roast, low-carb beef roast, low-carb sliced beef tenderloin
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Photos of low-carb beef tenderloin roast

Notes

Using a probe thermometer

A probe thermometer helps ensure your beef tenderloin roast reaches the perfect internal temperature. Simply insert it into the thickest part of the meat before cooking, and monitor the temperature until it reaches your desired doneness. If you don’t have a probe thermometer, you can use an instant-read thermometer after cooking or follow general cooking time guidelines, though these methods are less precise.

Cooking temperatures for beef

Cooking your beef tenderloin to the right temperature is key to achieving the desired level of doneness:

  • Rare: 120°F to 125°F (49°C to 52°C) – Cool, red center
  • Medium-Rare: 130°F to 135°F (54°C to 57°C) – Warm, red center
  • Medium: 140°F to 145°F (60°C to 63°C) – Warm, pink center
  • Medium-Well: 150°F to 155°F (66°C to 68°C) – Slightly pink center
  • Well-Done: 160°F and above (71°C and above) – Little to no pink

For a tenderloin roast, medium-rare (130°F to 135°F) is often recommended for the best flavor and texture. Use a meat thermometer to ensure accurate cooking.

Frequently Asked Questions

Is this low-carb beef tenderloin roast recipe Keto?

Yes! This recipe makes about 10 servings, and each serving has 1 net carb. Beef tenderloin is a great option if you’re following a Keto or high-protein diet.

Is this recipe gluten-free?

Yes, our low-carb beef tenderloin roast is gluten-free.

Storage and Reheating Guidelines

  • Storing leftovers: Store leftover beef tenderloin in an airtight container in the refrigerator for up to 3 days.
  • Freezing instructions: Wrap the cooked beef tightly in plastic wrap and aluminum foil, then freeze for up to 3 months.
  • To reheat: Reheat slices in the microwave on low power, or warm them in a skillet over medium-low heat with butter to prevent drying out.

Additional Details

Beef tenderloin roast is a go-to dish for special occasions, known for its tender texture and rich flavor. It’s an excellent choice if you’re following a low-carb diet or managing diabetes, as it’s both satisfying and healthy. Our low-carb beef tenderloin roast offers a way to enjoy this classic dish without the extra carbs, making it a great option for holidays or any time you want to treat yourself and your loved ones.

Beef tenderloin, often called filet mignon when cut into steaks, is one of the most tender cuts of beef. It comes from a muscle that doesn’t get much exercise, which is why it’s so soft. This cut has been a favorite for centuries, often used in fine dining and special meals. Over time, it has also become popular in home kitchens, especially for those looking to prepare something special without complicated steps.

Details about ingredients

The success of a beef tenderloin roast comes from the quality of the ingredients and keeping things simple:

  • Beef tenderloin: This cut is prized for its tenderness and mild flavor. It’s a lean piece of meat that cooks quickly and is easy to work with. When buying, look for a piece that’s even in shape and bright red in color.
  • Salt and pepper: These basic seasonings highlight the natural flavor of the beef without overpowering it. Keeping the seasoning simple allows the quality of the meat to shine through.
  • Garlic herb butter: Butter adds a rich flavor and helps create a nice crust when roasting. Garlic and fresh rosemary add a light, aromatic taste that complements the beef without being too strong.

Variations

While this recipe is straightforward, there are a few ways you can change it up:

  • Different herbs: To give the roast a different flavor, you could use thyme, sage, or parsley instead of rosemary.
  • Marinades: For a stronger flavor, marinate the tenderloin in olive oil, vinegar, and herbs for a few hours before cooking.
  • Crusted roasts: For added texture, try coating the tenderloin with crushed nuts like almonds or pecans before roasting. This adds a crunchy layer and a different flavor.

Serving pairings

This roast pairs well with a variety of low-carb sides, making it easy to put together a balanced meal:

  • Vegetables: Roasted or steamed vegetables like asparagus, green beans, or Brussels sprouts are great options with beef.
  • Salads: A light green salad with a simple dressing can balance the richness of the roast.
  • Cauliflower mash: A low-carb alternative to mashed potatoes, cauliflower mash is a great choice to serve alongside the beef.
  • Horseradish sauce: Adding a horseradish sauce can give the roast a tangy kick that complements the beef’s flavor.

Benefits for people with diabetes

This recipe is great for people with diabetes because it’s low in carbohydrates. Eating meals high in protein and low in carbs can help keep blood sugar levels stable, which is important for managing diabetes. The healthy fats from olive oil and butter add flavor without adding too many unhealthy fats, which is important for heart health. Pairing the roast with low-carb sides makes this a balanced meal that fits into a diabetes-friendly diet.

Tips for cooking the perfect roast

Cooking a beef tenderloin roast might seem challenging, but these tips can help ensure it turns out great:

  • Bring It to room temperature: Let the beef sit out for 1 to 2 hours before cooking. This helps it cook evenly and prevents the outside from cooking too fast while the inside stays underdone.
  • Sear the meat: Searing the beef in a hot pan before roasting helps create a flavorful crust and locks in the juices.
  • Use a meat thermometer: To ensure the roast is cooked just right, insert it into the thickest part of the roast and cook until it reaches your desired temperature. For medium-rare, aim for 130°F (54°C).
  • Let it rest: After roasting, let the beef rest for 10 to 15 minutes before slicing. This allows the juices to settle, making the meat more tender and flavorful.

This low-carb beef tenderloin roast is a great option for those who want to enjoy a special meal without worrying about carbs. With its simple seasoning and elegant presentation, it’s easy to make and sure to impress. Whether you’re preparing it for a holiday dinner or just want to treat your family, this dish offers a tasty and healthy choice that fits well into a diabetes-friendly lifestyle.

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