Sushi-Style Tuna Tartare with Avocado and Sesame Soy Dressing

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

Fresh diced tuna tossed with creamy avocado and a zesty sesame soy dressing, perfect for a light appetizer or snack. This Japanese-inspired seafood recipe, ready in about 10 minutes, layers ripe avocado, diced into 1/4-inch cubes, soy sauce, sesame oil 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 220 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 into 1/4-inch cubes
• 1 medium ripe avocado, diced into 1/4-inch cubes
• 2 tbsp soy sauce
• 1 tbsp sesame oil
• 1 tbsp lime juice
• 2 tbsp scallions, thinly sliced
• 1 tbsp toasted sesame seeds
• 1 tsp fresh ginger, grated
• 1/4 tsp red chili flakes

The chef’s knife we’d prep this with → Best Chef's Knives for 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a medium bowl, whisk together 2 tbsp soy sauce, 1 tbsp sesame oil, 1 tbsp lime juice, 1 tsp grated fresh ginger, and 1/4 tsp red chili flakes until well combined and fragrant.
2. Step 2: Add 8 oz diced sushi-grade tuna and 1 medium diced avocado to the bowl. Gently fold the ingredients together to coat the tuna and avocado evenly without mashing.
3. Step 3: Sprinkle 2 tbsp thinly sliced scallions and 1 tbsp toasted sesame seeds over the mixture, folding gently one more time.
4. Step 4: Chill the tuna tartare in the refrigerator for 10 minutes to let the flavors meld before serving as a fresh starter or snack.