Fresh Tuna Crostini

By AislePrompt Editorial · Published 2026-04-02 · Updated 2026-04-02

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

Crispy bread topped with seared tuna, avocado, and a zesty lemon-herb sauce for a refreshing appetizer or light dinner. This Japanese-inspired seafood recipe, ready in about 27 minutes, pairs day-old bread, tuna, avocado for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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: 15 min Cook: 12 min Serves 4 Japanese cuisine 280 cal/serving

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Ingredients

4 slices day-old bread
1 can (4 oz), drained tuna
1 medium, mashed avocado
1 small, zest and juice lemon
1 tbsp, chopped dill
1 tbsp olive oil
1/4 tsp salt
1/8 tsp black pepper

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Instructions

Step 1: Preheat oven to 350°F (175°C). Brush 4 slices of day-old bread with 1 tbsp olive oil and place on a baking sheet. Bake for 10-12 minutes until golden and crisp.
Step 2: In a small bowl, combine 1 can drained tuna, 1 mashed avocado, 1 tbsp chopped dill, 1/4 tsp salt, and 1/8 tsp black pepper. Mix until smooth.
Step 3: Spread the tuna-avocado mixture evenly over the toasted bread slices. Garnish with lemon zest and a drizzle of lemon juice. Serve immediately.