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What Great Grandma Ate / Recipes / 30 Minutes or Less / Pan Fried Swordfish Steak with Creamy Lemon Basil Sauce Recipe (Paleo, Whole30, Keto)

Pan Fried Swordfish Steak with Creamy Lemon Basil Sauce Recipe (Paleo, Whole30, Keto)

Last Updated on October 22, 2021 by Jean Choi 12 Comments

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AIP
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Grab a copy of my cookbook, Korean Paleo: 80 Bold-Flavored, Gluten- and Grain-Free Recipes!

Paleo Whole30 Swordfish Steaks with Creamy Lemon Basil Sauce - Ready under 30 minutes!

Paleo, Whole30, and keto-friendly swordfish steak served with creamy lemon basil sauce. It’s made under 30 minutes and so flavorful!

Swordfish Steaks with Creamy Lemon Basil Sauce

Mmmmm, swordfish steak. I believe I first tried it about 5 years ago and have enjoyed it ever since. It’s one of my seafood favorites that’s quite steak-y because of how thick they are, but cooks super quick and isn’t “fishy” tasting. When cooked just right (as in, not overcooked and dry), it’s so delicious and tender, but mild enough that it goes well with any sauce or spices. I absolutely love it.

Swordfish Steaks with Creamy Lemon Basil Sauce
Swordfish Steaks with Creamy Lemon Basil Sauce

This is a great weeknight recipe because you’ll have a healthy and flavorful dinner in about 20 minutes. You don’t even need to turn on the oven!

The best part about it is the creamy lemon basil sauce, because it really brightens up the flavors. I’ve marinated swordfish steak before in all different sauces, but I like to keep it simple with the fish itself then give it a boost after cooking with a sauce or dressing. Swordfish itself is pretty neutral in flavor so this works out really well.

Swordfish Steaks with Creamy Lemon Basil Sauce

If you are unfamiliar with swordfish, don’t be intimidated. It’s one of the easiest fish to cook, because it cooks so fast compared to its thickness, and it’s quite nutrient dense! It’s one of the few food sources of vitamin D and has a substantial amount of anti-inflammatory Omega 3 fatty acids. Love when delicious food is jam packed with nutrients!

Swordfish Steaks with Creamy Lemon Basil Sauce

Swordfish Steak with Creamy Lemon Basil Sauce

Paleo, Whole30, and keto-friendly swordfish steak served with creamy lemon basil sauce. It's made under 30 minutes and so flavorful!
5 from 7 votes
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Course: Main Course
Cuisine: American
Prep Time: 15 minutes
Cook Time: 6 minutes
Total Time: 21 minutes
Servings: 2 servings
Calories: 522kcal

Ingredients

Swordfish

  • 2 swordfish steaks 1 inch thick
  • 1 tbsp lemon juice
  • Salt and pepper to taste (Omit pepper for AIP)
  • 2 tbsp ghee or coconut oil

Creamy lemon basil sauce

  • 1/2 avocado
  • 1/2 cup fresh basil packed
  • Juice and zest of 1/2 lemon
  • 1 tbsp extra virgin olive oil
  • Salt and pepper to taste (Omit pepper for AIP)
  • 3 tbsp of water plus more, if necessary

Instructions

  • Pat the swordfish dry with a paper towel, and season them liberally with salt and pepper on both sides. Pour lemon juice over the swordfish and refrigerate for 15 minutes.
  • While the swordfish is marinating, place all ingredients of the lemon basil sauce in a blender and blend until smooth. If the sauce is too thick, add more water until it becomes the right consistency. Set aside.
  • Heat a coconut oil in a skillet over medium high heat.
  • Place the steaks in the pan and cook for 6 minutes, flipping halfway through.
  • Drizzle lemon basil sauce over the steaks and serve with delicious veggies!
Nutrition Facts
Swordfish Steak with Creamy Lemon Basil Sauce
Amount Per Serving (1 serving – makes 2)
Calories 522 Calories from Fat 369
% Daily Value*
Fat 41g63%
Saturated Fat 14g88%
Trans Fat 1g
Polyunsaturated Fat 4g
Monounsaturated Fat 19g
Cholesterol 151mg50%
Sodium 142mg6%
Potassium 980mg28%
Carbohydrates 5g2%
Fiber 3g13%
Sugar 1g1%
Protein 35g70%
Vitamin A 594IU12%
Vitamin C 9mg11%
Calcium 26mg3%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

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By Jean Choi | February 23, 2017

Comments

  1. Allie says

    October 25, 2017 at 4:51 pm

    5 stars
    SUPER excited to make this! Anyway to substitute the avocado for something else??

    Reply
    • Jean Choi says

      October 26, 2017 at 2:21 am

      You can just make it without it!

      Reply
  2. Lauren says

    January 2, 2018 at 4:24 pm

    5 stars
    I used your recipe but cooked it in my sous vide. It came out amazing! I wish I could post a picture!

    Reply
    • Jean Choi says

      January 2, 2018 at 6:23 pm

      Sounds amazing and so glad you liked it. I need to get a sous vide cooker. I hear so many great things!

      Reply
  3. Brian says

    March 11, 2018 at 5:01 am

    5 stars
    I had a couple of beautiful Aussie barramundi fillets, and some day old basil, and was trying to figure out how to combine the two when I came across this recipe. It worked really well, and we loved it. Healthy, too. My Japanese wife thought it might be fun to see if it worked with shiso leaves instead of basil, so we’re going to try that at some time.

    Reply
    • Jean Choi says

      March 11, 2018 at 4:02 pm

      Love your variation! So glad you enjoyed it. Let me know how it works with shiso leaves!

      Reply
      • Brian says

        April 7, 2018 at 2:27 am

        5 stars
        Just tried making the recipe with shiso instead of basil. Works really well. It was hard to decide which version we preferred. We currently have more shiso growing in the garden than we know what to do with, so it’s a great way to use it. Thanks for a great recipe

        Reply
  4. Fred says

    August 26, 2018 at 6:41 pm

    5 stars
    Wow, Impressive.

    Reply
  5. Lisa C Peterson says

    September 24, 2019 at 3:55 pm

    5 stars
    Love the sauce! Such a great way to use up basil. I bet it wil make a nice spread for sandwiches tomorrow.

    Reply
  6. PR Cisneros says

    April 8, 2020 at 4:04 pm

    5 stars
    Loved the recipe, my wife and I ended up changing it to roasted onion blend for the seasoning on the swordfish steaks and Marinated it in avocado oil and lemon juice. on the side we cooked green beans lightly peppered and finally cooked potatoe wedges in a French onion seasoning. everything turned out with a smooth roasted flavor with some tanginess to it all, it was very Spectacular

    Reply
  7. Sean says

    January 30, 2021 at 4:17 pm

    Had some leftover sauce, any recommendations for its use?

    Reply
    • Jean Choi says

      February 5, 2021 at 12:35 pm

      You can use it on chicken or other meat, or even drizzle over roasted veggies!

      Reply

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Welcome!

headshot of Jean Choi - blogger of What Great Grandma Ate I’m Jean and I’m a Nutritional Therapist (NTP) living in Southern California with my husband and 2 dog babies. On WGGA, you’ll find simple and easy gluten-, dairy-, and processed sugar-free recipes that focus on quality nutrients, and of course, never sacrifice on taste. I believe that the food you love should love you back, making you feel amazing inside and out. I apologize in advance for my inappropriate jokes and misunderstood sarcasm! More About Jean

Recipe Key

  • 3030 Min or Less
  • AIPAIP
  • EFEgg Free
  • LCLow Carb
  • NFNut Free
  • PPaleo
  • VVegan
  • W3Whole 30

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