Sushi-Style Seared Tuna with Avocado and Wasabi Aioli

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Tender seared tuna steaks served atop creamy avocado slices with a spicy wasabi aioli, inspired by signature sushi fusion dishes. This japanese-inspired sushi (gluten free) ready in about 15 minutes blends (6 oz each) tuna steaks, sesame oil, salt into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 350 calories and feeds 2, so a small batch covers several meals across the week without taking over the fridge. 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.

Prep: 10 min Cook: 5 min Serves 2 Japanese cuisine 350 cal/serving
Build a week of meals around this recipe → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Knives & cutting boards → Shop all kitchen tools →

Instructions

  1. Step 1: Pat dry 2 tuna steaks (6 oz each). Season both sides with 1/2 tsp salt and 1/4 tsp black pepper. Heat 1 tbsp sesame oil in a skillet over high heat until shimmering.
  2. Step 2: Sear tuna steaks for 1.5 minutes per side for medium-rare, until the edges are browned but the center remains pink. Remove from heat and let rest for 5 minutes.
  3. Step 3: In a small bowl, whisk together 3 tbsp mayonnaise, 1 tsp wasabi paste, and 1 tbsp lime juice until smooth and creamy.
  4. Step 4: Plate the tuna steaks on a bed of 1 thinly sliced ripe avocado. Drizzle 2 tbsp soy sauce over the tuna, then spoon 1-2 tbsp of wasabi aioli around the plate. Garnish with 1 tsp toasted sesame seeds and 1 tbsp finely chopped green onions before serving.

Frequently asked questions

How long does Sushi-Style Seared Tuna with Avocado and Wasabi Aioli take to make?

Total time is about 15 minutes (10 min prep + 5 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Sushi-Style Seared Tuna with Avocado and Wasabi Aioli?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Sushi-Style Seared Tuna with Avocado and Wasabi Aioli?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Sushi-Style Seared Tuna with Avocado and Wasabi Aioli for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Sushi-Style Seared Tuna with Avocado and Wasabi Aioli gluten free?

Yes — this recipe is tagged gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.