Keto Tuna Steak Recipe With Wasabi Sauce 🐟

Are you ready to embark on a flavor-packed journey with our Tuna Steak Recipe? This mouthwatering dish is perfect for seafood lovers and those following a low-carb lifestyle. We made these simple tuna steaks seasoned with zesty lemon pepper and served with a creamy wasabi sauce in under 30 minutes!

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Preparation and cooking overview

It only takes 25 minutes to prepare these tuna steaks. First, coat the tuna steaks with a mix of zesty spices. Prepare a creamy wasabi sauce. Fry the steaks until they’re cooked, and serve them with a generous drizzle of the wasabi sauce.

Chef’s note

For all the spicy food enthusiasts, add half a teaspoon of chili flakes to the wasabi sauce or sprinkle over the seared tuna steaks. And for the crust, add aromatic dried herbs like rosemary or thyme to the spice mixture for extra flavor.

Prep Time: 5 minutes
Cooking Time: 20 minutes
Total Time: 25 Minutes
Difficulty Level: Easy
Recipe Makes 2 Servings

🐟 Ingredients for this tuna steak recipe

Here is the list of ingredients you will need for this tuna steak recipe:

For tuna steaks

2 tuna steaks (4 ounces each)
½ teaspoon lemon pepper
½ teaspoon onion powder
½ teaspoon garlic powder
¼ teaspoon ground cumin
¼ teaspoon cayenne pepper
Sea salt, to taste

For the wasabi sauce

½ cup heavy cream
1-2 teaspoons wasabi paste
1 teaspoon soy sauce
Pinch xanthan gum

Tuna fish steak recipe served on a plate.

Ingredient substitutions

If you feel like switching things up with the suggested ingredients, don’t worry, we’ve got you covered.

Lemon pepper: If you can’t find ready-made lemon pepper, you can use the zest of half a lemon and ¼ teaspoon of ground black pepper.
Soy sauce: Did you run out of soy sauce? If so, swap it with an equal amount of Tamari or coconut aminos. Both of them have a savory, umami flavor.

Additional ingredients

Here are some optional ingredients to enhance the flavors of your fried tuna steaks:

Fresh herbs (cilantro, basil, or parsley): Chop some fresh herbs and top them over the finished dish to add a vibrant touch.
Sesame seeds: Toast some sesame seeds and sprinkle them over your seared tuna steaks. They provide a lovely crunch and subtle nutty flavor.
Lime wedges: Serve your tuna steaks with lime wedges on the side. To add a tangy touch, squeeze fresh lemon juice over the fish before eating.

Wasabi sauce glazed tuna steaks with sauteed asparagus.

Cooking tools required

To make this Tuna Steak Recipe, you will need the following kitchen tools:

Metal spatula
Mixing bowls
Cast-iron skillet
Cutting board
Sharp knife

Tools substitute options

Cast-iron skillet: If you don’t have a cast-iron skillet, use a frying pan or a griddle.

A plate containing tuna steak recipe covered with wasabi sauce and vegetables like broccoli, zucchini, and asparagus.

How to make Tuna Steak: step-by-step guide

Cooking methods

Pan-searing

Preparation steps

Gather all your ingredients.
Measure them in the right quantities.
Ensure you have all the cooking tools.

Cooking instructions

Season the tuna steaks

Mix the lemon pepper, onion powder, garlic powder, ground cumin, cayenne pepper, and salt in a small bowl.
Coat the tuna steaks by rubbing the prepared spice mix on both sides. Once coated evenly, set them aside.

Lemon pepper, onion powder, garlic powder, ground cumin, cayenne pepper, and salt in a small bowl.

Tuna steaks coated by rubbing the prepared spice mix on both sides.

Make the wasabi sauce

Combine the heavy cream, wasabi paste, and soy sauce in a bowl.
Sprinkle a pinch of xanthan gum into the mixture and whisk until well combined.
Heat on low until it is warmed through and thickened.

Cook the tuna steaks

Heat your cast-iron skillet over medium heat for 10 minutes.
Carefully place the steaks into the skillet and sear for 2-3 minutes on each side for a medium-rare finish. Aim for 4-5 minutes per side if you prefer it cooked through.
Then, remove the steaks from the pan and let them rest for a few minutes.
Arrange them on a serving plate and pour the wasabi sauce on top. Serve and enjoy!

Tuna steaks seared in a cast iron skillet.

Chef’s pro tip

The secret to perfecting this recipe lies in the use of a smoking hot cast-iron skillet. Therefore, ensure that your pan is heated well before adding the tuna filets. The hot pan provides a quick, intense sear that locks in the juices and flavors. Additionally, remember to be gentle when flipping the tuna steaks; you don’t want the steaks to fall apart.

What to serve with low-carb tuna steak?

Cauliflower rice: This is a low-carb alternative to traditional white rice. Steaks with rice are the best combination you can ever have. Its sweet flavor balances the spicy wasabi sauce.
Grilled vegetables: Serve the steaks with a plate of grilled veggies, including asparagus, broccoli, and zucchini.
Roasted Brussels sprouts: The bold flavors of roasted sprouts pair nicely with the spices on the steak.
Sautéed spinach with garlic: Serve it with a delightful side of tender spinach sautéed with fresh garlic. The garlicky flavor adds a delicious touch to the meal.

Low carb tuna fish steak recipe with veggies and wasabi sauce.

How to make it healthier?

Make it dairy-free: Swap the heavy cream with the same amount of coconut cream. It’s dairy-free and offers a thick, creamy sauce.
Reduce sodium: If you’re watching your sodium intake, use a low-sodium soy sauce. It has a similar umami flavor even with less salt.
Buy wild-caught tuna: If it fits within your budget, get wild-caught tuna from the fish market.

Time-saving tips

Use frozen pre-cut tuna: Instead of buying fresh tuna and preparing the filets yourself, purchase pre-cut filets. Remember to thaw them before coating them in spices.
Buy pre-made wasabi sauce: If you can find ready-made wasabi sauce that meets your keto requirements, buy it and serve it with steaks.

Keto tuna steak recipe with vegetables and wasabi sauce.

What can I prepare ahead of time?

Wasabi sauce: Prepare the wasabi sauce ahead of time. You can even refrigerate a big batch for 2-3 days.

Storage and reheating instructions

Storage instructions

Allow the tuna steaks to cool to room temperature. Then, store them and the wasabi sauce separately in airtight containers.

Refrigerator: Leftover tuna steaks last for 2-3 days. As for the sauce, it will remain good for three days in the fridge.

Reheating best practices

Stovetop: Heat a small amount of oil or butter in a nonstick skillet over low heat. Add the steak and cook for 2-3 minutes on each side.
Oven: Preheat the oven to 350°F (175°C). Place the tuna steak on a baking sheet and bake for 8-10 minutes or until heated.
Microwave: Place the tuna steak in a microwave-safe dish, cover it with a damp paper towel, and heat it on high for 30-second intervals until warmed.

Recipe wrap-up and conclusion

This Tuna Steak Recipe is perfect for a light lunch or a satisfying dinner. Pair it with your favorite keto-friendly sides, and it’s sure to become a treasured addition to your meal rotation. It’s easy to make, but the taste is out of this world! So, why wait? Add this gem to your menu and enjoy the simplicity it brings to the table!

Don’t forget to share how it went! Click a picture and share it on our Instagram and Facebook!

Tuna steak reicpe with vegetables and wasabi sauce.

Frequently asked questions

Sure! Use salmon steak, cod, or halibut. These fish have firm flesh and sear like tuna.

Marination is not necessary. But if you have time, you can marinate the steaks in lemon juice, black pepper, and minced garlic cloves for 30 minutes. It makes the fish more flavorful.

It’s best to use fresh or frozen ahi tuna steaks, also known as yellowfin tuna. Ahi tuna is firm and steak-like, perfect for searing and maintaining a slightly pink center.

We don’t recommend freezing the leftovers as freezing changes the texture of the tuna and makes it mushy upon thawing.

Absolutely! Xanthan gum thickens the wasabi sauce. If you don’t have it on hand, use some cream cheese. Just make sure it’s fully melted and mixed into the sauce.

Use an equal amount of horseradish sauce. It’s not an exact match for wasabi’s unique flavor, but it will give your sauce a similar spicy kick.

📖 Recipe

Tuna Steak Recipe

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Enjoy a flavorful journey with our Tuna Steak Recipe, featuring tender seared tuna coated in zesty spices and served with a creamy wasabi sauce. Perfect for seafood lovers and keto-friendly too!

Course Main Course

Cuisine International

Keyword Keto Tuna Dish, seafood, Tuna Steak, Wasabi Sauce

Prep Time 5

Cook Time 20

Total Time 25

Servings

Calories 459kcal