Sushi-Inspired Tuna Tartare with Avocado and Soy-Lime Dressing

By AislePrompt Editorial · Published 2026-07-05 · Updated 2026-07-05

Fresh diced tuna combined with creamy avocado and a zesty soy-lime dressing for a refreshing appetizer with sushi flavors. This Japanese-inspired seafood recipe (gluten free), ready in about 10 minutes, layers sushi-grade tuna, diced 1/4-inch, ripe avocado, diced, soy sauce into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 250 calories and feeds 2, so it slots into a weekend bake or a special-occasion dessert tray. 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

• 8 oz sushi-grade tuna, diced 1/4-inch
• 1 medium ripe avocado, diced
• 2 tbsp soy sauce
• 1 tbsp fresh lime juice
• 1 tsp sesame oil
• 2 tbsp green onion, finely sliced
• 1 tsp toasted sesame seeds
• 1 tbsp fresh cilantro leaves, chopped
• 1/4 tsp red chili flakes
• 1/4 tsp salt

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Instructions

1. Step 1: In a medium bowl, combine 8 oz diced sushi-grade tuna with 2 tbsp soy sauce, 1 tbsp fresh lime juice, 1 tsp sesame oil, and 1/4 tsp salt. Gently toss to coat and marinate for 5 minutes.
2. Step 2: Add 1 diced medium ripe avocado, 2 tbsp finely sliced green onion, 1 tbsp chopped fresh cilantro leaves, and 1/4 tsp red chili flakes to the marinated tuna. Gently fold together to combine without mashing the avocado.
3. Step 3: Transfer the tuna tartare mixture to a serving dish and sprinkle 1 tsp toasted sesame seeds evenly on top for texture and nuttiness.
4. Step 4: Serve immediately as an appetizer with crisp crackers or thinly sliced cucumber rounds.