Collaborative Tuna Salad Sandwich with Avocado

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A refreshing tuna salad packed with fresh vegetables and herbs, served on whole-grain bread for a satisfying and healthy meal that feels like a team effort. This american-inspired salads ready in about 10 minutes pairs (5 oz) cans canned tuna, medium avocado, red onion into a side that holds its own next to almost any main — bright, balanced, and quick enough to slot into a weeknight plate. Each serving lands at about 400 calories and feeds 2, so it slots cleanly next to roasted proteins, grain bowls, or weeknight mains. 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.

★ 3.6 (14 ratings) Prep: 10 min Serves 2 American cuisine 400 cal/serving
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Ingredients

Instructions

  1. Step 1: Drain and flake 2 cans tuna into a medium bowl, breaking into small pieces with a fork.
  2. Step 2: Dice 1/4 cup red onion and 1/2 cup cucumber into small uniform cubes.
  3. Step 3: Mash 1 medium avocado with 1 tbsp lemon juice until mostly smooth but slightly chunky.
  4. Step 4: Add diced onion, cucumber, 2 tbsp fresh dill, 1 tbsp lemon juice, and 1 tbsp olive oil to the tuna, then mix gently.
  5. Step 5: Fold in the mashed avocado until evenly incorporated, being careful not to overmix.
  6. Step 6: Spread 1/2 cup mixed greens on each slice of whole-grain bread.
  7. Step 7: Divide tuna salad evenly between two slices of bread, then top with remaining bread slices.
  8. Step 8: Cut sandwiches diagonally and serve immediately for optimal freshness.

Equipment for this recipe

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Frequently asked questions

How long does Collaborative Tuna Salad Sandwich with Avocado take to make?

Total time is about 10 minutes (10 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 Collaborative Tuna Salad Sandwich with Avocado?

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 (5 oz) cans canned tuna from drying out.

Can I substitute ingredients in Collaborative Tuna Salad Sandwich with Avocado?

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 Collaborative Tuna Salad Sandwich with Avocado 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.

What goes well with Collaborative Tuna Salad Sandwich with Avocado?

American salads like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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