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pork tenderloin roasted with vwgetables
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4.84 from 6 votes

Pork Tenderloin and Potatoes

This oven baked Pork Tenderloin and Potatoes is tender and juicy, packed full of flavor and oh-so-easy.  Simply slather in a delicious herb butter alongside potatoes, carrots and onions and let the oven do the work.
Prep Time10 mins
Cook Time1 hr 30 mins
Resting Time10 mins
Total Time1 hr 50 mins
Course: Main Course
Cuisine: American
Servings: 8 people
Calories: 251kcal
Author: The Carefree Kitchen


  • 2-3 lb Pork Tenderloin boneless
  • 1-2 teaspoons Sea Salt
  • ½ teaspoon Pepper
  • cup Butter room temperature
  • 2 Tablespoons Garlic minced (reserve 1 teaspoon for veggies)
  • 2 teaspoons Thyme fresh minced
  • 2 teaspoons Rosemary fresh minced
  • ½ teaspoon Dried Sage or 1 teaspoon fresh, minced
  • 1 teaspoon Onion Powder
  • 2 medium Yellow Onions peeled and quartered
  • 3 whole Carrots peeled and cut into 2" pieces
  • 2 lbs Potatoes fingerling, red, yukon, or a mix
  • 2 Tablespoons Avocado Oil
  • 1 Tablespoon Parsley fresh chopped for garnish


  • Preheat oven to 400 degrees F.
  • Spray a 9" x 13" baking dish with non-stick cooking spray. Unwrap the pork tenderloin and place it in the baking dish. Use a paper towel to pat dry the pork tenderloin, then season with salt and pepper.
  • In a small bowl, combine the room temperature butter, garlic, thyme, rosemary, sage, and onion powder and use a fork to mash and combine all of the ingredients. Using a spatula, spread this butter mixture evenly over the top of the pork tenderloin. 
  • In a separate bowl, add the prepared onions, carrots, potatoes, avocado oil, and 1 teaspoon of reserved minced garlic. Stir until well coated, then arrange the veggies around the edge of the pork in the baking dish.
  • Roast in a preheated 400 degree oven for 35-40 minutes, or until the thermometer reads 145 degrees F. If the pork isn't golden brown on top, broil in the oven for a minute or two until golden.
  • Once the pork has reached 145 degrees, remove from the oven and let rest for about 10 minutes before slicing and serving.
  • To serve, spoon juices from the bottom of the baking dish over the meat. Slice the pork into 1" pieces, garnish with freshly chopped parsley and serve with some of the roasted vegetables and any other of your favorite sides. Enjoy!


  • If the skin or top of the pork is browning too quickly it hasn't reached 145 degrees yet, cover the pork with foil until it's done.
  • You can also use very small pork tenderloins or double the ingredients and make this recipe with very large pork tenderloins.  It's very versatile.


Calories: 251kcal | Carbohydrates: 4g | Protein: 24g | Fat: 15g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 94mg | Sodium: 419mg | Potassium: 508mg | Fiber: 1g | Sugar: 1g | Vitamin A: 370IU | Vitamin C: 4mg | Calcium: 24mg | Iron: 1mg