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Seared Tuna with Avocado Salad


  • Author: Jessica

Ingredients

  • Fresh Tuna Steaks: (1 pound, about 2 steaks) Look for sushi-grade or sashimi-grade tuna for the best quality and flavor. These are typically sourced and handled to be safe for raw consumption, ensuring a superior searing experience.
  • Ripe Avocados: (2 large) Avocados are the heart of the salad, providing creaminess and healthy fats. Choose avocados that yield slightly to gentle pressure, indicating perfect ripeness.
  • Cherry Tomatoes: (1 pint) These add a burst of sweetness and acidity to the salad. Halve or quarter them for easy eating and even distribution.
  • Red Onion: (½ small) Red onion provides a sharp, pungent bite that complements the richness of the avocado and tuna. Finely dice it to avoid overpowering the salad.
  • Cilantro: (¼ cup, fresh) Fresh cilantro adds a bright, herbaceous note that ties all the flavors together. Roughly chop it for the salad and extra for garnish.
  • Lime Juice: (2 tablespoons, fresh) Freshly squeezed lime juice is crucial for the dressing, adding acidity and brightness that balances the richness of the avocado and tuna.
  • Olive Oil: (3 tablespoons, extra virgin) High-quality extra virgin olive oil forms the base of the dressing and is essential for searing the tuna. Its fruity notes enhance the overall flavor profile.
  • Soy Sauce (or Tamari for gluten-free): (2 tablespoons) Soy sauce adds umami and saltiness to both the marinade for the tuna and the dressing. Tamari is a great gluten-free alternative with a similar flavor.
  • Sesame Oil: (1 teaspoon, toasted) Toasted sesame oil provides a nutty, aromatic depth to the dressing and marinade. A little goes a long way, so use it sparingly.
  • Ginger: (1 teaspoon, grated fresh) Fresh ginger adds a warm, spicy kick to the marinade and dressing. Grating it finely ensures even distribution of flavor.
  • Garlic: (1 clove, minced) Garlic enhances the savory notes of the marinade and dressing, adding depth and complexity.
  • Red Pepper Flakes: (¼ teaspoon, optional) For a touch of heat, red pepper flakes add a subtle spice that complements the other flavors. Adjust to your preference.
  • Salt and Black Pepper: To taste, for seasoning both the tuna and the salad. Freshly ground black pepper is recommended for the best flavor.
  • Sesame Seeds: (1 tablespoon, for garnish, optional) Toasted sesame seeds add a nutty crunch and visual appeal as a garnish.

Instructions

  1. Prepare the Tuna Marinade: In a shallow dish or zip-top bag, whisk together 2 tablespoons of olive oil, 2 tablespoons of soy sauce (or tamari), 1 teaspoon of toasted sesame oil, 1 teaspoon of grated fresh ginger, and 1 clove of minced garlic. This marinade is the key to infusing the tuna with savory, umami-rich flavors before searing. The combination of soy sauce, sesame oil, ginger, and garlic creates an Asian-inspired profile that beautifully complements the fresh tuna.
  2. Marinate the Tuna Steaks: Place the tuna steaks in the marinade, ensuring they are evenly coated. Let them marinate in the refrigerator for at least 15 minutes, or up to 30 minutes for a more intense flavor. While the tuna marinates, prepare the avocado salad. Do not marinate for longer than 30 minutes as the acid in the marinade can start to “cook” the fish and alter its texture.
  3. Prepare the Avocado Salad: While the tuna is marinating, prepare the avocado salad. In a medium bowl, gently combine the diced ripe avocados, halved or quartered cherry tomatoes, finely diced red onion, and roughly chopped fresh cilantro. Handle the avocado gently to avoid mashing it. The goal is to maintain distinct pieces for textural contrast in the salad.
  4. Make the Avocado Salad Dressing: In a small bowl, whisk together 2 tablespoons of fresh lime juice, 1 tablespoon of extra virgin olive oil, a pinch of salt, and freshly ground black pepper to taste. For an extra layer of flavor, you can add a tiny pinch of red pepper flakes for a subtle heat. Taste and adjust seasoning as needed, ensuring a balanced dressing that is bright and zesty.
  5. Dress the Avocado Salad: Just before serving, gently drizzle the lime dressing over the avocado salad and toss lightly to combine. Dress the salad right before serving to prevent the avocado from browning and to keep the vegetables crisp. Avoid over-dressing, as you want the fresh flavors of the ingredients to shine through.
  6. Sear the Tuna Steaks: Heat a large skillet or grill pan over medium-high heat. Add the remaining 1 tablespoon of olive oil to the hot pan. Once the pan is hot and the oil is shimmering (but not smoking), carefully place the marinated tuna steaks in the skillet. Searing the tuna in a hot pan is crucial for achieving that perfect seared crust while keeping the center rare to medium-rare.
  7. Sear for Perfection: Sear the tuna for 1-2 minutes per side for rare to medium-rare, or slightly longer for medium. The exact searing time will depend on the thickness of your tuna steaks and your desired level of doneness. For rare, aim for a dark sear on the outside and a bright red center. For medium-rare, the center will be slightly pink. Avoid overcooking the tuna, as it can become dry and tough. Use tongs to gently flip the tuna steaks to sear each side evenly.
  8. Rest the Tuna: Once seared to your desired doneness, remove the tuna steaks from the skillet and let them rest on a cutting board for a few minutes before slicing. Resting allows the juices to redistribute throughout the tuna, resulting in a more tender and flavorful steak. This step is essential for achieving the best texture and preventing the juices from running out when you slice it.
  9. Slice and Serve: Slice the seared tuna steaks against the grain into ½-inch thick slices. This ensures tenderness and makes it easier to eat. Arrange the sliced seared tuna over a bed of the prepared avocado salad.
  10. Garnish and Enjoy: Garnish the seared tuna and avocado salad with extra fresh cilantro and toasted sesame seeds, if desired. Serve immediately and enjoy the explosion of fresh flavors and textures! This dish is best enjoyed fresh to appreciate the vibrant flavors and the perfect sear on the tuna.

Nutrition

  • Serving Size: one normal portion
  • Calories: 650
  • Protein: 50 grams