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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.

Beef tenderloin roast

Tami DeGeeter, CPT, CNC
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.
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Prep Time 1 hour
Cook Time 30 minutes
Rest Time 10 minutes
Total Time 1 hour 40 minutes
Course Lunch and Dinner
Makes 10 servings
Serving Size 5-6 oz beef
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 let it sit at room temperature for 1 to 2 hours before cooking.
  • Preheat your oven to 425°F (220°C).
    Close-up view of temperature knob on an oven, preheat oven to cook a meal.
  • In a small bowl, mix together the softened butter, garlic, and rosemary. Set aside.
    Top-view of garlic and herb butter mixed in a small glass bowl.
  • If not already tied, use kitchen twine to tie the beef tenderloin. Pat dry with paper towels and season all sides with salt and black pepper.
    Top view of beef tenderloin roast on a plate seasoned with salt and pepper.
  • In a large oven-proof skillet over medium-high heat, heat the olive oil. Sear the beef tenderloin on all sides for 3 to 5 minutes per side until a golden crust forms.
    Top view of a beef tenderloin roast in a skillet to sear the sides to golden brown.
  • Spread the garlic herb butter over the tenderloin. Insert a probe thermometer into the thickest part of the roast and 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 until the beef reaches your desired internal temperature, about 15 to 20 minutes. *See the temperature notes below.
  • Remove the roast from the oven and place it on a cutting board. Let rest for 10 to 15 minutes.
    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.

Nutrition

Nutrition Facts
Beef tenderloin roast
Amount per Serving
Calories
505
% Daily Value*
Net Carbohydrates
 
1
g
Carbohydrates
 
1
g
Fiber
 
0
g
Sugar
 
0
g
Protein
 
63
g
Fat
 
28
g
Saturated Fat
 
12
g
Trans Fat
 
0
g
Polyunsaturated Fat
 
1
g
Monounsaturated Fat
 
12
g
Cholesterol
 
202
mg
Sodium
 
557
mg
Potassium
 
528
mg
15
%
Vitamin C
 
1
mg
1
%
Vitamin A
 
59
µg
8
%
Calcium
 
21
mg
2
%
Iron
 
5
mg
28
%
Nutrition facts are an estimate and are provided as a courtesy. Nutrition facts are sourced from the USDA Food Database. Values may vary depending on brand of ingredients used.
Keywords garlic beef tenderloin, Keto beef tenderloin roast, low-carb beef roast, low-carb sliced beef tenderloin
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