Sep 11 2026
RestaurantsThe Original Italian PieSeared Tuna Salad Recipe

Seared Tuna Salad Recipe

Time25m
Serves2

Seared Ahi tuna served rare, atop a bed of baby spinach tossed with fresh mushrooms, red onions, fresh roma tomato, mandarin oranges & walnuts. Served with our special Thai dressing.

Was this page helpful?

Help improve this recipe for others.

Send this recipe to your inbox.

We'll email it straight to you - plus weekly cooking inspiration.

Ingredients

Some product links may be affiliates. If you buy through them, you're supporting the site and Pekin may earn a commission at no extra cost to you.

Tuna

Method

Tuna

  1. 1

    Marinate

    Pat the ahi tuna dry with paper towels. In a shallow dish combine 2 tbs soy sauce, 1 tsp sesame oil and 1 tsp freshly ground black pepper. Place the tuna in the marinade and turn to coat all sides. Let sit at room temperature for 10 minutes (do not over-marinate, this is mainly for seasoning).

  2. 2

    Sear

    Heat a heavy skillet (cast iron preferred) over high heat until very hot, about 3–4 minutes. Add 1 tbs neutral oil and swirl to coat. Place the tuna steak in the pan and sear without moving for 45–60 seconds per side for rare (depending on thickness). For a 1-inch steak, 45 seconds per side yields rare with a warm center. If steak is thicker, increase sear time to 60–75 seconds per side. Remove tuna to a cutting board and let rest 3 minutes before slicing thinly across the grain into 1/4-inch slices.

Thai Dressing

  1. 3

    In a small bowl or jar whisk together 3 tbs vegetable oil, 1.5 tbs soy sauce, 1 tbs rice vinegar, 1 tbs fresh lime juice, 1 tsp honey, 0.5 tsp sesame oil, 0.5 tsp grated fresh ginger, 0.5 tsp minced garlic and 1/8 tsp red pepper flakes if using. Taste and adjust balance: more honey to sweeten, more lime for brightness, or more soy for saltiness. Refrigerate briefly if not using immediately; shake or whisk again before dressing the salad.

Salad Assembly

  1. 4

    In a large bowl combine 4 cups baby spinach, 1 cup thinly sliced mushrooms, 1/4 cup thinly sliced red onion, diced roma tomato and 3/4 cup mandarin orange segments. Sprinkle with 1/2 tsp fine salt and 1/4 tsp freshly ground black pepper. Toss gently to combine.

  2. 5

    Add approximately 3 tablespoons (or to taste) of the prepared Thai dressing to the salad and toss lightly until evenly coated. Taste and add more dressing if desired.

  3. 6

    Arrange the dressed salad on individual plates or a large platter. Fan or stack the sliced seared tuna over the top of the salad. Sprinkle 1/2 cup toasted chopped walnuts over the salad and tuna. Finish with 1 tsp sesame seeds and 1 tbsp thinly sliced green onions if using.

Serve

  1. 7

    Serve immediately so the tuna remains rare and warm in the center while the greens stay crisp. Provide extra dressing at the table if desired.

More from The Original Italian Pie