Avocado-Tuna Salad with Citrus Dressing

By AislePrompt Editorial · Published 2026-04-13 · Updated 2026-04-13

Creamy, protein-packed salad featuring flaked tuna and ripe avocado, dressed in a zesty citrus vinaigrette. This American-inspired seafood recipe, ready in about 15 minutes, pairs canned tuna, avocado, red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 310 calories and feeds 2, 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.

Ingredients

• 1 can (5 oz) canned tuna
• 1 medium avocado
• 1/4 cup red onion
• 1 lime
• 1 tbsp olive oil
• 1/2 tsp dijon mustard
• 1/4 tsp sea salt

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Instructions

1. Step 1: Drain tuna thoroughly and flake with a fork into a medium bowl. Dice avocado and red onion into 1/4-inch pieces.
2. Step 2: Squeeze juice from half a lime into a small bowl; whisk in olive oil, dijon mustard, and sea salt until emulsified.
3. Step 3: Add diced avocado, red onion, and tuna to the bowl with the dressing. Gently fold together until evenly distributed, avoiding mashing the avocado.
4. Step 4: Squeeze remaining lime half over the salad and serve immediately to prevent browning.