Healthy Holiday Delight: Grass-Fed Beef Tenderloin Recipe

The holidays are a time to gather with loved ones and enjoy delicious, wholesome meals, and this Grass-Fed Beef Tenderloin recipe is the perfect centerpiece for your festive table. Whether you're hosting a holiday dinner or preparing a special meal for your family, this recipe brings together simple, healthy ingredients to create a dish that’s both nutritious and full of flavor. Made with fresh herbs, garlic, and a homemade Dijon-style mustard, it’s a holiday favorite that highlights the rich taste and health benefits of grass-fed beef. Impress your guests with a tender, perfectly seasoned roast that’s as good for you as it is indulgent!

Prep Time: 10 minutes (tenderloin) and 5 minutes (mustard)
Resting Time: 5 minutes (tenderloin) and 12-24 hours (mustard)
Total Time: 30 minutes (tenderloin) and 24 hours (mustard)
Servings: 4

Ingredients

Grass-Fed Beef Tenderloin

  • 1.5 lbs. grass-fed tenderloin tip roast
  • 1 tbsp homemade mustard with no added sugar
  • 1/4 cup fresh parsley or cilantro, chopped
  • 1-2 cloves garlic, minced
  • 2 tsp fresh thyme leaves (or 1 tsp dried thyme)
  • 1 tsp sea salt
  • 1 tsp freshly ground black pepper
  • 1 tbsp avocado oil (a healthier high-heat oil alternative)

Homemade Mustard

  • 1/4 cup mustard seeds (yellow, brown, or a mix for flavor balance)
  • 1/4 cup apple cider vinegar (organic, unfiltered)
  • 1/4 cup water (filtered or distilled)
  • 1/4 tsp sea salt
  • 1/4 tsp turmeric 

Prepare the Homemade Mustard:

  1. Soak Mustard Seeds: In a small bowl, combine mustard seeds, apple cider vinegar, and water. Stir to mix. Cover the bowl and let the mixture sit at room temperature for 12-24 hours. This allows the seeds to absorb the liquid and soften.
  1. Blend the Mustard: After soaking, transfer the mixture to a blender or food processor. Add the sea salt and turmeric. Blend until you reach your preferred consistency—smooth or slightly grainy. Add a teaspoon of water at a time if it’s too thick.
  1. Adjust Flavor: Taste and adjust seasoning, adding a little more vinegar or salt if needed.
  1. Store and Use: Transfer the mustard to a clean jar with a lid. Allow it to sit in the fridge for another 12-24 hours before using. This resting time lets the flavors develop fully.

Prepare and cook the Beef Tenderloin:

  1. Prepare the Beef: Coat the roast evenly with a thin layer of Dijon mustard. Sprinkle with sea salt, black pepper, thyme, garlic, and freshly chopped parsley or cilantro. Gently press the seasonings into the meat for better adhesion.
  1. Sear the Roast: Heat 1 tbsp avocado oil in a cast-iron skillet over medium-high heat. Once hot, sear the roast for about 2 minutes on each side to lock in the juices and achieve a golden crust. 
  1. Bake for Perfection: Preheat your oven to 375°F. Transfer the skillet with the seared roast into the oven. Bake for 8-10 minutes for a medium-rare finish (internal temperature of 135°F).
  1. Rest the Roast: Remove the skillet from the oven, cover the roast loosely with foil, and let it rest for 5 minutes to allow the juices to be redistributed.
  1. Slice and Serve: Thinly slice the tenderloin against the grain. Serve immediately with a healthy side dish, like roasted vegetables or a fresh salad.

Calories per serving: 250 calories

Calorie Estimate Disclaimer: Calorie counts are approximate and will vary depending on portion sizes, specific brands used, and any substitutions made. Always check nutritional labels and adjust according to your needs.

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