Ingredients

For the Tuna Salad:
- 2 cans (5 oz each) tuna in water, drained
- 3 tablespoons mayonnaise
- 1 tablespoon Dijon mustard
- 2 tablespoons red onion, finely diced
- 2 tablespoons celery, finely diced
- 1 tablespoon fresh lemon juice
- 1/4 teaspoon garlic powder
- 1/4 teaspoon black pepper
- 1/8 teaspoon salt (adjust to taste)
- 1 tablespoon fresh dill or parsley, chopped (optional)
For Assembly:
- 4 slices of whole wheat or white bread
- 2 leaves of lettuce
- 2 slices of tomato
- Optional: pickles, avocado slices, or cheese
Instructions
- Drain the canned tuna thoroughly and place it in a medium mixing bowl. Use a fork to flake the tuna into smaller pieces.
- Add the mayonnaise, Dijon mustard, and lemon juice to the tuna. Stir until well combined and creamy.
- Fold in the diced red onion, celery, garlic powder, black pepper, and salt. If using fresh herbs like dill or parsley, add them now. Mix everything together until evenly distributed.
- Give your tuna salad a taste and adjust the seasoning if needed. Add more lemon juice for tanginess, salt for flavor, or mayonnaise for extra creaminess.
- Toast the bread slices if desired. Place a lettuce leaf on one slice of bread, add a generous scoop of tuna salad, top with tomato slices, and cover with the second slice of bread.
- Cut the sandwich in half diagonally and serve immediately. Pair with chips, a side salad, or fresh fruit for a complete meal.
Notes
- Storage: Store leftover tuna salad in an airtight container in the refrigerator for up to 3 days. Do not freeze as mayonnaise-based salads don’t freeze well.
- Make-Ahead Tip: Prepare the tuna salad up to 2 days in advance and assemble sandwiches fresh when ready to eat to prevent soggy bread.
- Prevent Soggy Bread: Toast bread lightly and pat lettuce and tomato dry before assembly. Spread a thin layer of butter or mayo on bread as a moisture barrier.
- Tuna Options: Solid white albacore tuna has a firmer texture and milder flavor, while chunk light tuna is more affordable with a stronger taste. Both work great.
- Healthier Version: Substitute Greek yogurt for mayonnaise to reduce calories and add extra protein.
- Add-Ins: Try adding chopped hard-boiled eggs, diced pickles, capers, grapes, apples, or walnuts for extra flavor and texture.
- Serving Alternatives: Serve on lettuce wraps, stuffed in tomatoes or avocado halves, with crackers, or in pita pockets.
- Prep Time: 8 minutes
- Cook Time: 0 minutes
- Category: Lunch, Sandwich, Main Course
- Method: No-Cook, Mixing
- Cuisine: American