Ahi Tuna Appetizer with Sesame, Avocado & Soy-Lime Dressing
Ahi Tuna Appetizer Platter with Avocado and Radishes
This platter pairs sesame-coated yellowfin tuna with avocado, crisp radishes and a soy-lime dressing. Serve it as a shared appetizer, or make individual cucumber bites or baked wonton cups.
Serves: 4–6 as an appetizer using 12–16 oz raw fish. Allow about 25 minutes with thawed, portioned tuna; cooking time varies with thickness and equipment.
Ingredients
Tuna and Garnishes
- 2 yellowfin tuna steaks, about 6–8 oz each and roughly 1 inch thick
- 1 tablespoon neutral cooking oil
- 1 tablespoon sesame seeds
- Salt and white or black pepper to taste
- 1 small avocado, thinly sliced
- ¼ cup thinly sliced radishes
- 1 tablespoon chopped cilantro
- Lime wedges for serving
Soy-Lime Dressing
- 1 tablespoon soy sauce
- 1 tablespoon fresh lime juice
- 1 teaspoon rice vinegar
- 1 teaspoon sesame oil
Cook and Assemble
- Prepare vegetables and dressing before handling raw fish. Whisk the dressing in a clean bowl and taste for balance. Keep it separate from the raw tuna.
- Pat tuna dry, season lightly and press sesame seeds onto both flat surfaces.
- Heat cooking oil in a heavy skillet over medium-high heat. Brown both sides, turning carefully. Reduce heat as needed if the seeds color faster than the center cooks.
- For the cooked preparation, check the thickest part with a food thermometer and cook to 145°F internally. A fixed one- or two-minute sear cannot confirm the center's temperature.
- Transfer to a clean board. Slice across the grain with a sharp knife, adjusting thickness so the cooked pieces hold together.
- Arrange with avocado and radishes. Drizzle lightly with dressing, scatter cilantro over the platter and serve promptly with lime wedges.
Raw and Lightly Seared Variations
A briefly seared steak may still have a raw center. For a raw or lightly seared variation, confirm the specific fish's intended use and handling with the supplier. A “sushi-grade” label, a red appearance or freezing alone does not guarantee safety. For an uncooked sliced presentation, follow the ahi carpaccio recipe.
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Freezing does not kill all harmful germs. Pregnant people, children, older adults and people with weakened immune systems should avoid raw or undercooked seafood. Thorough cooking is the safer option; see FDA seafood guidance.
Three Ways to Serve
- Shared platter: arrange fish and vegetables in a shallow layer and offer clean serving utensils.
- Cucumber bites: place small pieces of tuna and avocado on cucumber rounds; dress just before serving.
- Wonton cups: use fully baked, cooled wonton cups and add tuna, vegetables and a little dressing close to serving so the cups stay crisp.
For heat, add a little Sriracha or prepared wasabi to the dressing. Ponzu can replace the soy-lime mixture; add gradually to suit its saltiness. Check labels for fish, soy, wheat, sesame and any additional allergens.
Preparation Ahead
Mix the dressing and prepare radishes ahead, keeping them refrigerated as appropriate. Slice avocado near serving. If cooking fish ahead, cool promptly under refrigeration and keep it chilled until assembly. Prepare manageable batches and do not treat an advance-preparation time as a safety guarantee for raw fish.
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Use Frozen Yellowfin Tuna Steaks or Fresh Yellowfin Tuna Steaks. Frozen 5 lb and 10 lb options are total order weights, not two-steak packs. For a flavored fresh option, check its seasoning before adding the full dressing.
Follow package thawing and wrapping instructions and read the tuna storage guide. For another appetizer, try ahi tartare or creamy ahi dip. Compare current fish in the Tuna Collection.
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