This stuffed pork tenderloin is a delightful dish that combines the savory flavors of pork with the freshness of spinach and the tanginess of feta cheese. It's perfect for a special dinner or a weekend meal that will impress your family and friends.
If you don't usually have feta cheese or spinach in your kitchen, you'll need to pick these up at the supermarket. Feta cheese is a brined curd cheese that adds a salty and tangy flavor to the dish, while spinach provides a fresh and slightly earthy taste. Both ingredients are typically found in the dairy and produce sections, respectively.

Ingredients for Stuffed Pork Tenderloin Recipe
Pork tenderloin: A lean cut of meat that is tender and perfect for stuffing.
Spinach: Fresh, leafy greens that add a nutritious and vibrant element to the stuffing.
Feta cheese: A crumbly, tangy cheese that complements the flavors of the pork and spinach.
Garlic: Adds a pungent and aromatic flavor to the stuffing mixture.
Olive oil: Used to rub the outside of the tenderloin, adding moisture and flavor.
Salt: Enhances the overall flavor of the dish.
Black pepper: Adds a hint of spice and depth to the seasoning.
Technique Tip for This Recipe
When butterflying the pork tenderloin, use a sharp knife and make slow, controlled cuts to ensure you don't slice all the way through. This technique creates a flat surface for the stuffing and helps the tenderloin cook evenly. Additionally, when tying the tenderloin with string, make sure to tie it snugly but not too tight, as this will help keep the stuffing inside while allowing the meat to expand slightly as it cooks.
Suggested Side Dishes
Alternative Ingredients
pork tenderloin - Substitute with chicken breast: Chicken breast is a lean protein that can be stuffed and cooked similarly to pork tenderloin, providing a mild flavor that complements various fillings.
chopped spinach - Substitute with kale: Kale offers a similar texture and nutritional profile to spinach, making it a great alternative for stuffing.
crumbled feta cheese - Substitute with goat cheese: Goat cheese has a similar tangy flavor and creamy texture, making it a suitable replacement for feta.
minced garlic - Substitute with garlic powder: Garlic powder can provide a similar flavor profile when fresh garlic is not available, though it is less pungent.
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a neutral flavor, making it a good alternative for cooking and adding richness.
salt - Substitute with soy sauce: Soy sauce can add a salty and umami flavor, though it will also introduce a different taste profile.
black pepper - Substitute with white pepper: White pepper provides a similar heat and flavor but with a slightly different aroma, making it a good alternative.
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How to Store or Freeze This Dish
Allow the pork tenderloin to cool completely before storing. This helps prevent condensation, which can make the meat soggy.
Wrap the stuffed pork tenderloin tightly in plastic wrap or aluminum foil. This will help retain moisture and prevent the meat from drying out.
Place the wrapped tenderloin in an airtight container or a resealable plastic bag. This adds an extra layer of protection against freezer burn and keeps the flavors intact.
Label the container or bag with the date and contents. This is especially useful if you have multiple items in your freezer, ensuring you use the pork tenderloin within a reasonable time frame.
Store the pork tenderloin in the refrigerator if you plan to eat it within 3-4 days. For longer storage, place it in the freezer where it can last up to 3 months without significant loss of quality.
When ready to reheat, thaw the pork tenderloin in the refrigerator overnight. This slow thawing process helps maintain the texture and flavor of the meat.
To reheat, preheat your oven to 325°F (165°C). Place the pork tenderloin in a baking dish and cover it with aluminum foil to prevent it from drying out. Heat for about 20-30 minutes or until it reaches an internal temperature of 145°F (63°C).
Alternatively, you can reheat slices of the pork tenderloin in the microwave. Place the slices on a microwave-safe plate, cover with a damp paper towel, and heat on medium power for 1-2 minutes, checking frequently to avoid overcooking.
How to Reheat Leftovers
Oven Method: Preheat your oven to 325°F (165°C). Place the leftover stuffed pork tenderloin in an oven-safe dish. Add a splash of chicken broth or water to keep it moist. Cover the dish with aluminum foil to prevent drying out. Heat for about 20-25 minutes or until the internal temperature reaches 145°F (63°C). Let it rest for a few minutes before slicing.
Stovetop Method: Slice the pork tenderloin into medallions. Heat a skillet over medium heat and add a bit of olive oil. Place the medallions in the skillet and cover with a lid. Cook for about 3-4 minutes on each side, or until heated through. This method helps retain moisture and adds a slight crisp to the outside.
Microwave Method: Place the stuffed pork tenderloin slices on a microwave-safe plate. Cover with a microwave-safe lid or another plate to trap steam. Heat on medium power for 1-2 minutes, checking halfway through. Be cautious not to overcook, as microwaving can dry out the meat.
Sous Vide Method: If you have a sous vide machine, set it to 140°F (60°C). Place the pork tenderloin in a vacuum-sealed bag or a ziplock bag using the water displacement method. Submerge in the water bath for about 45 minutes. This method ensures even reheating without drying out the meat.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Slice the stuffed pork tenderloin and place the slices in the air fryer basket. Heat for about 5-7 minutes, flipping halfway through. This method adds a nice crisp to the exterior while keeping the inside juicy.
Essential Tools for This Recipe
Oven: Used to preheat and bake the pork tenderloin to the desired temperature.
Knife: Essential for butterflying the pork tenderloin and slicing it after cooking.
Cutting board: Provides a stable surface for cutting and preparing the pork tenderloin and other ingredients.
Mixing bowl: Used to combine the chopped spinach, crumbled feta cheese, and minced garlic.
String: Utilized to tie the rolled-up tenderloin to keep the stuffing secure during cooking.
Baking dish: Holds the pork tenderloin while it bakes in the oven.
Meat thermometer: Ensures the pork tenderloin reaches the safe internal temperature of 145°F (63°C).
Tongs: Handy for handling the pork tenderloin without piercing it, which helps retain juices.
Basting brush: Useful for rubbing the olive oil, salt, and black pepper onto the outside of the tenderloin.
Aluminum foil: Can be used to tent the tenderloin while it rests, keeping it warm and juicy.
How to Save Time on This Recipe
Prepare the filling: Mix the spinach, feta cheese, and garlic ahead of time and store in the fridge.
Butterfly in advance: Butterfly the pork tenderloin the night before and keep it wrapped in the fridge.
Preheat the oven: Start preheating your oven while you prepare the tenderloin to save time.
Use pre-washed spinach: Opt for pre-washed spinach to cut down on prep time.
Quick seasoning: Mix olive oil, salt, and pepper in a small bowl and brush it on quickly.

Stuffed Pork Tenderloin Recipe
Ingredients
Main Ingredients
- 1 lb Pork Tenderloin
- 1 cup Spinach chopped
- ½ cup Feta Cheese crumbled
- 1 clove Garlic minced
- 1 tablespoon Olive Oil
- to taste Salt
- to taste Black Pepper
Instructions
- Preheat your oven to 375°F (190°C).
- Butterfly the pork tenderloin by slicing it lengthwise, being careful not to cut all the way through.
- In a bowl, mix the chopped spinach, crumbled feta cheese, and minced garlic.
- Spread the spinach mixture evenly over the inside of the pork tenderloin.
- Roll up the tenderloin and tie it with string to secure.
- Rub the outside of the tenderloin with olive oil, salt, and black pepper.
- Place the tenderloin in a baking dish and bake for 40 minutes, or until the internal temperature reaches 145°F (63°C).
- Let the tenderloin rest for 10 minutes before slicing and serving.
Nutritional Value
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