Seared Sesame-Crusted Tuna Steak over Arugula

Sesame-crusted tuna steak served over peppery arugula and drizzled with a tangy balsamic soy-ginger vinaigrette—simple, elegant, and delicious. This dish works beautifully as a main-course salad or as an appetizer for a special meal. The crunchy sesame crust and rare, seared center of the tuna pair perfectly with the bright, slightly sweet vinaigrette and the fresh bite of arugula.

Sesame Crusted Tuna

Seared or raw tuna is one of my favorite fish to enjoy, whether in sushi, ceviche, poke bowls, or salads like this. When you use sushi-grade ahi, the texture and flavor are outstanding. I love the contrast of a lightly seared exterior with a rare center, finished with sesame seeds for a toasty crunch. With a bright balsamic soy-ginger vinaigrette, this dish becomes both sophisticated and approachable.

When shopping for sushi-grade tuna, buy from a reputable fishmonger or market. High-quality fish stores that sell large quantities tend to receive regular shipments and maintain proper refrigeration. If you can, call ahead or ask when the next delivery arrives so you know the fish hasn’t been sitting too long. It’s worth spending a bit more for properly handled sushi-grade fish—especially if you plan to serve it rare or raw.

For this recipe I like to crust the tuna in a mix of black and white sesame seeds, sear it very briefly on a hot skillet, then slice and arrange the pieces over a bed of fresh baby arugula. The soy-ginger vinaigrette brings balanced acidity and savory depth, while a touch of honey rounds the flavors.

How to Choose Sushi-Grade Fish

Just because a piece of fish is labeled “sushi-grade” doesn’t guarantee quality. Use these practical tips when buying tuna or other fish intended to be served rare or raw:

• Buy from a reputable source. Look for fishmongers or markets with high turnover and knowledgeable staff who can tell you about delivery schedules and handling practices.
• Ask questions. Confirm that the fish is safe for raw consumption and that sushi-grade items are stored separately from non-sushi-grade fish.
• Use your senses. Fresh fish should smell clean and briny, like the ocean—not “fishy.” The flesh should appear moist and vibrant, not dull or discolored.
• Plan ahead. If possible, call before you go to ensure the fish you want will be available and recently delivered.

More Tuna Salad Ideas

• Chickpea Tuna Salad — a hearty salad combining tuna with chickpeas and fresh herbs.
• Mayo-less Tuna Macaroni Salad — lighter than the classic, with a vinaigrette-style dressing.
• Italian Tuna and Brown Rice Salad (Riso e Tonno) — a Mediterranean-style grain salad with tuna.
• Canned Tuna Ceviche — bright, citrusy, and quick to prepare.
• Tuna Lettuce Wrap with Avocado Dressing — a fresh, handheld option.

Sesame Crusted Tuna Steak on Arugula

Sushi-grade tuna encrusted with toasted sesame seeds and served over baby arugula with a balsamic soy-ginger vinaigrette. An easy, elegant main course or appetizer.

Prep: 15 mins   Cook: 3 mins   Total: 20 mins

Yield: 4 servings — about 4 slices tuna per serving and 1 cup salad per person

Calories: 290 per serving (approx.)

Ingredients

• 20 ounces sushi-grade tuna
• 1 teaspoon toasted sesame oil (for rubbing)
• 1/4 cup mixed black and white sesame seeds
• Pinch kosher salt and freshly ground black pepper
• 5 cups baby arugula

For the soy-ginger vinaigrette

• 1 tablespoon minced fresh ginger
• 1 tablespoon minced scallion (green onion)
• 1 tablespoon minced garlic
• 1/2 cup balsamic vinegar
• 1/4 cup red wine vinegar
• 1/4 cup soy sauce or gluten-free tamari
• 1 1/2 tablespoons honey
• 2 teaspoons toasted sesame oil
• 1 teaspoon Dijon mustard

Instructions

1. Pat the tuna steaks dry. Rub with 1 teaspoon toasted sesame oil and season lightly with kosher salt and freshly ground black pepper.
2. Spread the sesame seeds on a plate. Press each surface of the tuna steak into the seeds so they adhere evenly, coating all sides.
3. Heat a heavy skillet over high heat until it is very hot. Add the tuna and sear for 1 to 2 minutes per side, depending on thickness—just long enough to form a crust while keeping the center rare. Remove the tuna and let it rest briefly on a cutting board.
4. Meanwhile, whisk together all vinaigrette ingredients until smooth, or shake them in a jar. Taste and adjust seasoning if needed.
5. Toss the baby arugula with a few tablespoons of vinaigrette in a large bowl. Arrange the dressed arugula on plates or a serving platter.
6. Slice each tuna steak into 16 thin slices and arrange on top of the arugula. Drizzle additional vinaigrette over the tuna and serve immediately.

Tips & Variations

• For an extra-crispy crust, toast the sesame seeds briefly in a dry skillet before coating the tuna.
• If you prefer your tuna more cooked, sear a bit longer, but avoid overcooking to preserve tenderness and flavor.
• Serve with pickled ginger, thinly sliced cucumbers, or avocado slices for added texture and freshness.
• Use tamari instead of soy sauce for a gluten-free version.

Nutrition (approximate per serving)

• Calories: 290 kcal
• Protein: 36 g
• Carbohydrates: 16.5 g
• Fat: 8 g
• Fiber: 1.5 g
• Sodium: varies with soy sauce

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