Avocado-Cucumber Seafood Salad with Lime Vinaigrette

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

A refreshing, no-cook salad featuring briny tuna and cool cucumber, tossed in a zesty lime dressing. This mediterranean-inspired whole30 ready in about 15 minutes pairs canned tuna, avocado, cucumber for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 1, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. 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.

★ 4.5 (10 ratings) Prep: 15 min Serves 1 Mediterranean cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Drain and flake canned tuna into a medium bowl. Add diced avocado, chopped cucumber, and minced red onion.
  2. Step 2: Squeeze lime juice over the mixture, then add 1 tbsp olive oil, 1 tbsp dill, 1/8 tsp sea salt, and a pinch of black pepper.
  3. Step 3: Gently fold all ingredients together until evenly distributed, being careful not to mash the avocado.
  4. Step 4: Chill for 15 minutes before serving to let flavors meld and allow avocado to set slightly.

Frequently asked questions

How long does Avocado-Cucumber Seafood Salad with Lime Vinaigrette take to make?

Total time is about 15 minutes (15 min prep + 0 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Avocado-Cucumber Seafood Salad with Lime Vinaigrette?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep canned tuna from drying out.

Can I substitute ingredients in Avocado-Cucumber Seafood Salad with Lime Vinaigrette?

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 Avocado-Cucumber Seafood Salad with Lime Vinaigrette for a different number of people?

The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). 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.

What goes well with Avocado-Cucumber Seafood Salad with Lime Vinaigrette?

Mediterranean whole30 like this pair well with a compliant starch (roasted sweet potato, cauliflower rice, or plantains), a crisp salad dressed with olive oil and lemon, and sliced fruit. Skip grains, legumes, dairy and added sugar — none of them are Whole30-compliant. Tap "Plan a meal with the AI" to get specific side suggestions.

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