Keto Marinated Asian Pork Tenderloin

Prep: 10 min Cook: 180 min Total: 190 min Servings: 6
Annie Lampella @ Ketofocus

By Annie Lampella, Pharm.D.

Published April 12, 2020 • Updated June 2, 2025

Reader Rating
4.5 Stars (11 Reviews)
Dairy FreeEasyInstant PotKid FriendlySlow Cooker

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Pork tenderloin in the slow cooker is a budget friendly and time saving dinner option. This freezer friendly keto pork tenderloin is marinated in a sugar-free, low-carb Asian sauce as it slowly cooks in a crock pot for several hours.

plated of sliced marinated keto pork tenderloin next to cauli rice and broccoli slaw This keto slow cooker Asian pork tenderloin recipe is a budget friendly option that will easily feed a hungry family of four and still give you leftovers for lunch the next day. Pork tenderloin is marinated in all of your favorite Asian flavors and cooked slowly in a crock pot while you are working or enjoying life. Come home to the house filled with delightful smells of dinner cooking. Serve the sliced marinated pork tenderloin over cauliflower rice or broccoli slaw.

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Keto Marinated Asian Pork Tenderloin

4.5 (11) Prep 10m Cook 180m Total 190m 6 servings

Ingredients

  • 1.5 to 2 pounds pork tenderloin
  • 1/3 cup liquid aminos or soy sauce
  • 1/4 cup olive oil
  • 1/4 cup golden monk fruit or erythritol
  • 2 tablespoons sesame oil
  • 2 tablespoons Worcestershire sauce
  • 2 tablespoons lemon juice
  • 1 tablespoon dry mustard
  • 2 teaspoons minced garlic
  • 1 1/2 teaspoons black pepper
  • 1/2 teaspoon red pepper flakes

Step by Step Instructions

Step by Step Instructions

1
Add everything to slow cooker

Add all ingredients to the liner of a slow cooker.

marinated pork tenderloin in a crock pot
2
Slow cook instructions

Cover and cook at low for 3.5 to 5 hours or high for 2 to 3 hours or until pork has reached an internal temperature of 145 degrees Fahrenheit. Let stand a few mintues before slicing. Serve over broccoli slow or cauliflower rice.

cooking asian pork tenderloin in a slow cooker
3
Instant Pot instructions

Turn on sauté mode on your instant pot. Add olive oil and let heat up for a few minutes. Add tenderloins and sear until all edges are browned. Add remaining ingredients. Pressure cook for 15 minutes. Let pressure release naturally for 5 minutes before venting off the rest of the pressure manually.

4
Freezer instructions

Add all ingredients to a large ziploc bag, remove all the air and seal it close. Mix or shake to evenly coat the meat. Freeze flat. To cook, thaw in the refrigerator the night before. Then cook according to instructions above.

marinated pork tenderloin ingredients in a freezer bag
Nutrition Per Serving
287 Calories
16.9g Fat
32.4g Protein
2.7g Net Carbs
2.7g Total Carbs
6 Servings
Nutrition disclaimer

The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

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Slow cooker pork tenderloin

pouring low-carb marinated pork tenderloin into a slow cooker liner
The slow cooker is a useful appliance to have if you are on a keto diet and like to meal prep. As a working mom and wife that has to feed three hungry boys, I’m always on the hunt for easy keto recipes that don’t require a lot of time. Many of my favorite recipes can be made in a crockpot. I try to have freezer friendly keto recipes prepped ahead of time that can be thawed the night before and thrown in the slow cooker before I leave for work. After an 8 hour shift, you come home to your house smelling amazing and dinner is ready to serve! This recipe will be ready in 3-5 hours depending on the thickness of your pork tenderloin. If you are slow cooking this recipe while you are at work, it’s best to use a slow cooker with a timer and warmer setting. This will allow you to cook the marinated pork tenderloin for the proper short cooking time and keep it warm until dinner is ready.

Dump & go freezer friendly keto dinner

keto marinated pork tenderloin freezer meal in the freezer
If you lead a busy life or have an active family, it’s a good idea to have freezer friendly keto meals on hand. That way when you are coming up empty on ideas for dinner or thawed meat ready to cook in the evening, you can prepare a keto freezer meal that you prepped ahead of time. This recipe is a dump and go keto freezer meal. Meaning that you dump all the ingredients in a bag to freeze. When you go to cook your meal, you dump all the ingredients in a slow cooker and go on with your life. Hours later, you have dinner ready. My favorite way is to the Asian marinated pork tenderloin is over broccoli slaw, cauliflower rice or shirataki rice. My favorite shirataki rice is by Zeroodle. It is very low in carbs and doesn’t have that weird smell or texture like other shirataki noodles have. The leftover sauce from the marinated pork tenderloin is delicious and you can spoon it over the broccoli slaw or cauliflower rice.
keto asian sauce over broccoli slaw

Keto meal prep tips

Meal prep is a often crucial factor to being successful on the keto diet. You ways want to be prepared with healthy low-carb foods to eat, so you don’t cheat when you are hungry. Having freezer meals ready to go are a great way to ensure success and allow you to have dinner on the table when you have nothing else planned. This is a slow cooker pork tenderloin recipe that you can prep ahead of time. You can even double or triple the recipe to make extras to store in your freezer. Add all of the ingredients to a Ziploc bag and store in the freezer or refrigerator to cook up later. I love utilizing the slow cooker as a tool for getting dinner ready on busy weeknights. Recipe like this pork tenderloin allow me to dump all the ingredients in one pop, cover and let cook until I get home from work. If you didn’t prep this keto dinner ahead of time as a freezer meal, a meal prep tip you can still implement is to add all the ingredients to your slow cooker liner the night before. Cover and store the crock pot in the refrigerator until you need to plug it in and cook it. Often the mornings can be a hassle to try to squeeze prepping the slow cooker with dinner. This will save you an extra 10 minutes in the morning.
Keto Marinated Asian Pork Tenderloin

Frequently Asked Questions

Can I use a different type of meat instead of pork tenderloin?

Absolutely! You can substitute pork tenderloin with chicken breast or beef tenderloin. Just adjust the cooking time accordingly, as different meats may require different cooking times.

What can I use if I don't have liquid aminos or soy sauce?

If you don't have liquid aminos or soy sauce, you can use coconut aminos as a great low-sodium, gluten-free alternative. Alternatively, you can make a homemade soy sauce substitute using beef broth and a bit of vinegar.

How do I store leftovers of the marinated pork tenderloin?

Once cooked, you can store the leftovers in an airtight container in the refrigerator for up to 4 days. You can also freeze the cooked pork tenderloin for up to 3 months. Just make sure to slice it before freezing for easier reheating!

Is this recipe suitable for meal prep?

Yes! This keto marinated Asian pork tenderloin is perfect for meal prep. You can marinate the pork ahead of time and freeze it, or cook it in advance and portion it out for easy meals throughout the week.

How can I make this recipe spicier?

If you like it spicy, you can increase the amount of red pepper flakes or add some sliced fresh chilies to the marinade. You can also serve it with a spicy dipping sauce on the side for an extra kick!

About the Author
Annie Lampella, Pharm.D.

Annie Lampella, Pharm.D.

Annie is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis, she has over 14 years of experience developing family-friendly keto recipes based on the science of human metabolism.

Learn more about Annie View My Cookbook

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6 Comments

  1. I made this in the slow cooker and it turned out really tender. The marinade had great flavor. I subbed coconut aminos for Worcestershire to keep it lower in sugar and it still tasted great.

    Reply

  2. Worchestershire is full of sugar high fructose corn syrup etc. Do u have a sub for this. One carb per teaspoon and recipe calls for 2 T

    Reply

    1. Not all Worcestershire sauce uses high fructose corn syrup. Some brands use molasses or cane sugar. Since it is 2 T spread over 6 servings, the sauce is adding 1 g carb per serving, which is a little under twice the amount the sugar that an avocado has in it (to put it in perspective). You could get away with using only 1 tablespoon or adding a splash of apple cider vinegar to give a slight tang.

      Reply

      1. I don’t find the worcestershire sauce as bad as the monk fruit or erythritol. Maybe I could sub it with some chicken bone broth?

        Reply

    2. mountain out of a molehill in my opinion. Most of the sauce isn’t eaten after the pork is finished. Some is spead over each serving to taste. Almost none of the worchestershire is absorbed into the meet during cooking. I think those of us dedicated to keto can handle < .5g carbs.

      Reply

    3. You can use 2 T Bragg’s Liquid Aminos instead or Lea & Perrins Worcestershire sauce is only 1 g carbs

      Reply

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