Spicy Tuna Tataki with Avocado Salsa
Sear-tender tuna steak served with a vibrant avocado salsa, featuring a kick of jalapeño and fresh lime. This Japanese-inspired seafood recipe (high-protein, gluten-free), ready in about 20 minutes, pairs Tuna steak, Avocado, Red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with rice, quinoa, or a quick salad. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 1 lb Tuna steak
- 1 medium Avocado
- 2 tbsp Red onion
- 1/4 cup Cilantro
- 1 Lime
- 1/2 Jalapeño
- 1 tsp Sesame oil
- 1/2 tbsp Soy sauce
- 1/4 tsp Black pepper
The cast-iron skillet we’d sear this in → Best Cast Iron Skillets for 2026: Top Picks + Buying Guide
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Season 1 lb sushi-grade tuna steak with 1/4 tsp black pepper and 1/2 tbsp soy sauce. Heat a cast-iron skillet over high heat until smoking hot.
- Step 2: Sear tuna for 1 minute per side for medium-rare; remove from pan and let rest for 5 minutes.
- Step 3: While tuna rests, combine 1 medium diced avocado, 2 tbsp finely diced red onion, 1/4 cup chopped cilantro, juice of 1 lime, 1/2 seeded and minced jalapeño, and 1 tsp sesame oil in a bowl.
- Step 4: Slice rested tuna thinly against the grain. Serve immediately with avocado salsa spooned over the top.







