How to Sear Ahi Tuna

How to Sear Ahi Tuna

If you’ve never had the pleasure of tasting a seared ahi tuna steak, it’s high time you treat yourself to one of the leanest, most flavorful forms of protein on the planet.

Ahi is the Hawaiian word for bigeye or yellowfin tuna, which are native to tropical and subtropical oceans.

Given its steak-like texture (it’s not flaky like salmon or cod), ahi is often eaten raw or rare.

It easily absorbs the flavors of any marinade and is best seasoned with simple ingredients so as not to mask its flavor.

Searing ahi tuna steak creates a slight crust that contrasts the meaty interior — and in this recipe, we used Chinese five-spice seasoning to further enhance the flavor.

Note: Ahi can contain trace amounts of mercury, so it’s advised to eat it in moderation.

How to Sear Ahi Tuna
4.34 from 9 votes

Seared Ahi Tuna

If you've ever wanted to learn how to sear ahi tuna, these step-by-step instructions will make the process super easy.

Course Main Course
Prep Time 17 mins
Cook Time 5 mins
Total Time 22 mins
Servings 1 serving
Calories 194 kcal


  • 1 tsp. five-spice seasoning (also known as Chinese five-spice mixture)
  • 1 pinch sea salt (or Himalayan salt)
  • 6 oz. raw ahi tuna
  • Nonstick cooking spray


  1. Preheat grill or broiler on high.
  2. Combine five-spice seasoning and salt in a small bowl; mix well.
  3. Coat all sides of ahi with seasoning.
  4. Lightly coat grill or broiler pan with spray.
  5. Sear ahi for 2 minutes on each side, or until desired doneness. Remove from heat.
  6. Slice tuna on an angle.
  7. Serve over mixed greens dressed with extra-virgin olive oil and lemon juice.

Recipe Notes

Nutritional information is per serving, not including greens, olive oil, and lemon juice.

Nutrition Facts
Seared Ahi Tuna
Amount Per Serving (6 oz)
Calories 194 Calories from Fat 9
% Daily Value*
Fat 1g2%
Cholesterol 2mg1%
Sodium 221mg10%
Carbohydrates 2g1%
Fiber 1g4%
Protein 42g84%
* Percent Daily Values are based on a 2000 calorie diet.

When searing ahi, you’ll find that there’s generally no need for fancy oils or even aromatics like minced garlic.

To sear ahi tuna, preheat your grill or broiler on high and after coating the protein with seasoning, coat the grill or broiler pan with a light spray of nonstick cooking spray.

Gently place the protein on the pan (keep the heat on high) and let it sear for two minutes on each side.

When a side is done, use tongs to rotate it to the next side. Make sure not to cook it through or you’ll end up with a tough slab of fish.

Once seared, slice the ahi tuna on a bias and place it on a bed of greens for a high-protein meal.

You can also fashion it into a sandwich by placing the slices on a rustic roll and top it with Bell Pepper and Cabbage Slaw, or wrap it in a corn tortilla along with some cabbage, avocado, and chopped mango for taco night.

How to Sear Ahi Tuna |

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1½  Red

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A great protein option as part of lunch or dinner.

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