My family loved this keto stuffed pork tenderloin with mushroom sauce because it was so tasty and plus it’s low carb (3.2g net carbs). The tender pork and creamy melted cheese are topped with a flavorful mushroom sauce to make a week night dinner taste special.
You might also like this keto lemon butter pork tenderloin
or these other keto pork recipes!

I had planned to use thinly sliced steaks I had in the freezer for this recipe. However coming out of the freezer they didn’t look so good so onto plan B.
I ended up using a pork tenderloin. Oh my goodness, this keto stuffed pork tenderloin with mushroom sauce was so so tasty!
My husband raved about it for 2 days. I loved it too but was also happy because it’s low carb (3.2g net carbs).
And if you ever need to make a delicious meal that is worthy of dinner guests, this is the keto recipe you should try. While it may look a little difficult, it’s really quite easy.
How to prepare and stuff pork tenderloin.
First cut the pork tenderloin into 2 pieces. Then take each piece and cut it lengthwise but not all the way through. Cut it just enough so that you can open it like a book.
Now use a meat mallet or heavy pan and pound the meat as thin as you can so that you can roll it up after you stuff it. (see top left pic below)
Next rub crushed garlic on the top and season with salt and black pepper.
Layer with cheese and spinach and then roll up. If you have cooking twine, use that to keep it closed. Otherwise use toothpicks. (see bottom right pic below)
I like to push the toothpicks through the meat so they lay flat. That way you can seal the opening shut when you sear the meat and the toothpicks won’t get in the way.
Below you can see how I how I did all this.
Let’s make this pork tenderloin with mushroom sauce recipe!
- Prepare the pork tenderloin by pounding it thin, layering the garlic, spinach and cheese and rolling it up. Keep the filling and the meat together with kitchen twine or toothpicks. (See instructions above for more details.)
- Add olive oil to a skillet and bring it to medium – medium high heat. Brown the meat on both sides. Start with the sealed side so you can sear it shut. Then flip and do the other side.
- If you use an oven safe skillet you can just then place it in the oven to bake. Otherwise transfer the meat to a baking dish and place in the oven to bake for 25 minutes or until the internal temperature is 145°F when using a meat thermometer. (source)
- To make the mushroom sauce add butter to a skillet using a medium heat. Place in the mushrooms and cook them until they are nice and browned.
- Then add beef stock, balsamic vinegar and garlic to the mushrooms. Bring to a simmer.
- Cook the sauce for a few minutes to reduce the liquid. Take the pan off the heat and let cool for a minute and then add the cream.
- Pour the mushrooms sauce over your meat when it comes out of the oven.
I don’t know what I liked better the stuffed pork tenderloin or the mushroom sauce. The mushroom sauce would go great on a steak or just about any other meat.
What keto recipes to serve with this dish.
If you want to keep this simple you can use some of the leftover spinach to make a chopped spinach salad or try this spinach and cauliflower rice pilaf. Both take little time to make.
Or you could go with some wide zucchini noodles. Use a potato peeler to make a wide noodle like in this dish. Or try this brussel sprouts with cauliflower and bacon side dish which is also nice.
Lastly you can add spinach to the mushroom sauce to beef it up a bit or mix the mushrooms sauce with cauliflower rice.
Recipe Tips & Notes
- Pound the meat as thin as you can as that will help it roll up. However if you don’t get it looking perfect, don’t worry because it will still be delicious.
- When you use toothpicks make sure to pierce both sides of the meat to keep it closed. Also make sure the toothpicks will lay flat in the skillet so you can sear and seal the meat shut. That will help keep the stuffing inside.
- I used provolone cheese but you could also try Swiss cheese or mozzarella. Also I used slices but you could use shredded cheese. It just might be a bit harder to roll though.
- If you are not keto, you could make egg noodles to go with this dish. You might even want to make extra mushrooms sauce to go over the noodles.
- You could also wrap this pork with slices of bacon to keep the meat closed and add even more flavor. Just take a few bacon pieces, start and one end wrap the meat, overlapping slightly as you go. You will probably need about 2 – 3 large bacon pieces to cover all the meat. Then sear both sides as you would with the regular recipe.
I always keep a pork tenderloin in the freezer for a delicious keto dinner like this. I buy them at Aldi and with just a few simple ingredients you have a wonderful hearty meal like this. Enjoy!
The nutritional content for 1 serving is: 330 calories / 18.5g fat / 3.3g carbs / 0.1g fiber / 36g protein = 3.2g net carbs
Keto Stuffed Pork Tenderloin with Mushroom Sauce (low carb)
My family loved this stuffed pork tenderloin with mushroom sauce and I loved that it was low carb. The tender pork and creamy melted cheese are topped with a flavorful mushroom sauce to make a week night meal more elegant yet still easy.
Ingredients
- 1 lb pork tenderloin
- 2 tablespoons oil
- 3 slices provolone cheese
- ⅓ cup fresh chopped spinach
- salt and black pepper to taste
- 1 teaspoon of crushed garlic
- 8 oz of mushrooms sliced
- 1 tablespoon balsamic vinegar
- 1 large clove of garlic, minced
- 2 tablespoons butter
- 1 teaspoon Better than Bouillon, beef mixed with 1 cup water (or 1 cup beef stock)
- 1 tablespoon of heavy cream
Instructions
- Preheat oven to 375 degrees F.
- Cut the pork tenderloin in half to make two pieces.
- Then cut each piece lengthwise but leave ½ inch so you can open it like a book.
- Place plastic wrap over meat and pound thin with a meat tenderizer to about ¼ - ½ inch thick.
- Sprinkle minced garlic and salt and pepper over meat.
- Layer the cheese slices and then the spinach.
- Tightly roll up lengthwise and secure with ktichen twine or toothpicks. Try to put the toothpices straight through the rolled side so they lay flat when you sear that side of the meat. (Sear that side first).
- Add the olive oil to a pan and bring it to a medium - medium high heat. Brown the meat about 5 minutes on each side. Make sure to start with the toothpick side to seal the meat shut.
- If using an oven safe skillet you can place the meat right in the oven and cook about 25 minutes until the internal temperature is 145°F. Otherwise transfer the pork to a baking dish and place in the oven.
- While the meat is baking, make the mushroom sauce. Add butter and mushrooms to a large saute pan and cook for about 5 minutes.
- Add the garlic and broth and cook for another 5 minutes until it reduces a bit.
- Add the vinegar and mix well. Then take the pan off the heat and let cool for a few minutes and then add the cream and mix.
- When meat comes out of the oven let sit for 10 minutes then pour mushroom sauce over top.
- Serve immediately.
Notes
The nutrtional information for 1 serving:
330 cals / 18.5g fat / 3.3g carbs / 0.1g fiber / 36g protein = 3.2g net carbs
Recipe Notes & Tips
- Pound the meat as thin as you can as that will help it roll up. However if you don't get it looking perfect, don't worry because it will still be delicious.
- When you use toothpicks make sure to piece both sides of the meat to keep it closed. Also make sure the toothpicks will lay flat in the skillet so you can sear and seal the meat shut. That will help keep the stuffing inside.
- I used provolone cheese but you could also try Swiss cheese or mozzarella. Also I used slices but you could use shredded. It just might be a bit harder to roll though.
- If you are not keto, you could make egg noodles to go with this dish. You might even want to make extra mushrooms sauce to go over the noodles.
- You could also wrap this pork with slices of bacon to keep the meat closed and add even more flavor. Just take a few bacon pieces, start and one end wrap the meat, overlapping slightly as you go. You will probably need about 2 -3 large bacon pieces to cover all the meat. Then sear both sides as you would with the regular recipe.
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Nutrition Information:
Yield: 4 Serving Size: 4 ServingsAmount Per Serving: Calories: 330Net Carbohydrates: 3.2g
JC says
Very good recipe! I butterflied the tenderloin whole and didn’t cut in half for fear the stuffing would leak out and it worked fine. Also, I added some dried thyme to the mushrooms for added flavor that worked well.
One thing is key that recipe didn’t say is that you should take pan off the heat a minute or two before adding the cream, so it doesn’t curdle or “break”. I did and used half and half instead of heavy cream because that’s all I had. Served with steamed cauliflower sauteed with garlic and can of drained cannellini beans and worked our beautifully. Bon Appetite!
Denise says
Hi JC, that’s for coming back to comment and sharing your tips. I will make a note to the recipe to turn the heat down. So glad you liked it!
Nancy Mabee says
I made this last night exactly as the recipe says – it was delicious BUT the pork was hard and dry. Help!
Denise says
Hi Nancy, all I can think of is that maybe you could pound it a bit thinner and that should also tenderize it a bit more. And then when you cook it, try to use a meat thermometer to make sure the temperature is 145 degrees. I’m sorry it was hard and dry. I’ll have to remake this and see if I can think of anything else.
Terry Marie Canaday says
This was absolutely delicious, will make again.
Denise says
I’m so glad you liked it!
judy says
Can this be made the day ahead? Early in the morning or the day before? I have a full day tomorrow so would love to make it up today and cook tomorrow.
Denise says
Hi Judy, I don’t see why not. You could prepare it up until it’s ready to brown in the pan. That is pound it out, add the layers and roll it up. Then brown and cook it when you are ready. You could probably also make the mushroom sauce ahead of time but I’m not sure if the cream will separate. It would still taste good though. Good luck!
Judy says
Thanks Denise. I think I’ll give it a try, even the sauce. I just won’t add the cream until I reheat the sauce before serving.
Denise says
Hope it works out!