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overhead view of a plate of ahi tuna steaks, coated in sesame seeds and sliced thinly.
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5 from 3 votes

Seared Ahi Tuna Recipe

Making perfect Seared Ahi Tuna is much easier than you might think. Coat tuna steaks with Dijon mustard and sesame seeds, sear for a few minutes, and enjoy. Serve on its own or over a fresh salad for a delicious lunch or dinner.
Prep Time5 minutes
Cook Time10 minutes
Total Time15 minutes
Course: Dinner
Cuisine: asian
Servings: 2 people
Author: Becky Hardin

Equipment

  • Cast Iron Skillet (optional)

Ingredients

  • 8 oz. Ahi Tuna steak (yellowfin or Saku) ½ lb. (230g), thawed if frozen
  • ½ tbsp Dijon mustard
  • 1 tbsp white sesame seeds
  • 1 tbsp black sesame seeds

Instructions

  • Preheat a large skillet over high heat. Get the pan smoking hot before adding the tuna. This will create the perfect sear. To test whether it is hot enough, add a drop of water to the pan. If it sizzles and skips across the surface, it is ready.
  • Meanwhile, season the tuna steak with Dijon mustard all over.
    8 oz. Ahi Tuna steak (yellowfin or Saku), ½ tbsp Dijon mustard
  • Combine the black and white sesame seeds on a shallow plate, then gently press the tuna steak into seeds to coat it on all sides.
    1 tbsp white sesame seeds, 1 tbsp black sesame seeds
  • Place your tuna in the skillet once it is ready, cook on one side for 1-1½ minutes, just to sear. Don't move the fish around. Let it sit until it develops a nice sear and naturally releases from the pan, then flip. Make sure you sear all sides but do not overcook.
  • Transfer to a cutting board, let rest for a minute, then slice. Serve as desired.

Nutrition

Calories: 211kcal | Carbohydrates: 2g | Protein: 28g | Fat: 10g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 3g | Cholesterol: 43mg | Sodium: 86mg | Potassium: 329mg | Fiber: 1g | Sugar: 0.1g | Vitamin A: 2479IU | Vitamin C: 0.01mg | Calcium: 89mg | Iron: 2mg