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picture of turkey tenderloin on a sheet pan with sweet potatoes and onions
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4.70 from 33 votes

Garlic Butter Baked Turkey Tenderloin and Sweet Potatoes

Garlic butter baked turkey tenderloin and sweet potatoes - a one pot sheetpan dinner that is bursting with flavor in just 40 minutes!
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Turkey
Cuisine: American
Keyword: baked main dish, main dish, one pot, thanksgiving, turkey, turkey tenderloin
Servings: 6 servings
Calories: 385kcal
Author: Courtney O'Dell

Ingredients

  • 1 lb turkey breast tenderloins weight will vary by packaging, up to 2 pounds
  • 2 tablespoon olive oil
  • 2 teaspoons freshed cracked pepper divided
  • 2 teaspoons celtic sea salt divided
  • 1 yellow onion diced
  • 2 medium sweet potatoes diced into 1" cubes (about 2 cups)
  • 4 oz butter melted
  • ¼ cup minced garlic
  • 1 tablespoon Italian herbs seasoning blend

Instructions

  • Preheat oven to 350 degrees.
  • Season turkey with 1 teaspoon salt and pepper.
  • In a large, heavy pan, heat olive oil until light and shimmery.
  • Sear until brown on all sides, about 2-3 minutes per side.
  • While turkey is searing, add sweet potatoes and onions to baking sheet.
  • When turkey has browned on all sides (but not cooked through), place on baking sheet in the middle of onions and potatoes.
  • In a small bowl, mix butter, garlic, and Italian herbs with remaining salt and pepper. Pour over turkey, sweet potatoes, and onions.
  • Roast in oven for 35-40 minutes, until turkey reaches 165 degrees internal temperature.
  • Remove from oven and let rest at least 10 minutes before slicing turkey to let the meat rest and give the juices time to redistribute.
  • Serve and enjoy!

Nutrition

Serving: 1g | Calories: 385kcal | Carbohydrates: 12g | Protein: 28g | Fat: 25g | Saturated Fat: 12g | Polyunsaturated Fat: 11g | Trans Fat: 1g | Cholesterol: 113mg | Sodium: 989mg | Fiber: 2g | Sugar: 3g