Panera Bread Tuna Salad Copycat Recipe

This Panera Bread tuna salad recipe gives you that creamy, lightly tangy sandwich filling at home, without a trip to the café. It comes together in about 10 minutes and keeps in the fridge for days, which makes it one of those reliably useful things to have on hand.

It’s a straightforward recipe, but the details matter. The ratio of mayo to mustard, a little celery for crunch, and a squeeze of lemon are what set this apart from a basic can-of-tuna situation.

Why I Love This Recipe

The texture is what gets me. Chunky enough to feel satisfying, creamy enough to hold together in a sandwich without sliding out the sides.

The lemon juice keeps it bright rather than heavy, and the celery adds a little crunch in every bite. It’s a tuna salad that actually tastes like something.

This is the version I keep coming back to on busy weeks when I want a real lunch that takes no effort.

Recipe Ingredients

• 2 cans (10 oz total) chunk light tuna in water – Drained well; chunk light gives the right flaky texture without being too fine
• 3 tbsp mayonnaise – Full-fat works best here; the creaminess carries the whole dressing
• 1 tsp Dijon mustard – Adds a mild tang without overpowering the fish
• 1 tbsp fresh lemon juice – Brightens the whole thing; bottled works but fresh is noticeably better
• 2 stalks celery – Finely diced; this is the main source of crunch
• 2 tbsp red onion – Finely diced; adds a little sharpness
• 1 tbsp fresh dill – Chopped; dried works at 1 tsp but fresh is cleaner-tasting
• ¼ tsp garlic powder – Just enough to round out the savory notes
• ¼ tsp salt – Start here and adjust after tasting
• ¼ tsp black pepper – Freshly cracked if you have it

Variations / Substitutions

• Greek yogurt for mayo – Swap in plain full-fat Greek yogurt 1:1 for a lighter, slightly tangier result.
• Yellow mustard for Dijon – The flavor is a little sharper and more straightforward, which works fine if that’s what you have.
• Apple cider vinegar for lemon juice – Use ½ tsp; it adds acidity but without the citrus note, so the flavor shifts slightly.
• Scallions for red onion – Milder bite, good if you find raw red onion too sharp.
• Dried dill for fresh – Use 1 tsp dried in place of 1 tbsp fresh; the herb flavor is more muted but still present.
• Solid white albacore for chunk light – Firmer texture and a cleaner taste, though it costs a bit more.
• Dairy-free – This recipe is already dairy-free as written when you use standard mayo.

If you like this kind of quick, no-cook lunch, the Panera Bread Chicken Salad Sandwich recipe is worth making next.

How To Make Tuna Salad

Step 1: Drain and Flake the Tuna

Open both cans and press each lid firmly against the tuna to squeeze out as much water as possible, then tip them into a medium bowl. Use a fork to break the tuna into flakes, working through any larger chunks until you have a fairly even texture with no big clumps.

Getting the tuna genuinely dry matters here. If you skip the pressing step, the water dilutes the dressing and the salad turns watery within an hour.

Step 2: Mix the Dressing

In a small bowl, combine the 3 tbsp mayonnaise, 1 tsp Dijon mustard, and 1 tbsp fresh lemon juice. Whisk with a fork for about 30 seconds until the mixture looks smooth and uniform, with no streaks of mustard visible.

This takes about 30 seconds. You want everything evenly combined before it hits the tuna, so you’re not chasing streaks of mayo through the bowl later.

Step 3: Fold in the Vegetables and Seasoning

Add the 2 finely diced celery stalks, 2 tbsp diced red onion, 1 tbsp chopped fresh dill, ¼ tsp garlic powder, ¼ tsp salt, and ¼ tsp black pepper directly to the bowl of tuna. Pour the dressing over everything, then fold it all together with a spatula or large spoon, using about 8 to 10 slow folds rather than stirring aggressively.

The gentle folding keeps the tuna chunky. If you stir hard, you end up with a paste, and the texture is the best thing about this salad.

Step 4: Taste, Adjust, and Plate the Tuna Salad

Give it a taste and adjust the salt or lemon juice if needed. Spoon the tuna salad onto your bread of choice or into a bowl lined with lettuce leaves, then finish with a small pinch of fresh dill and a crack of black pepper on top.

Recipe Tips

• Dice the celery and onion small. Pieces larger than ¼ inch compete with the tuna rather than blending into it. Take an extra minute with the knife and it makes a real difference in the final texture.
• Chill it for 20 minutes if you have time. The flavors come together noticeably after a short rest in the fridge. It tastes better cold than it does straight out of the bowl.
• Taste before you add extra salt. Canned tuna varies a lot in sodium. Start with the ¼ tsp in the recipe, taste, and go from there.
• Don’t skip pressing the tuna dry. A watery salad is the most common complaint with tuna salad and it’s entirely avoidable. Press the lids down hard and hold them for a few seconds over the sink.

Prep times by serving size:

How To Store

• Refrigerate – Keep in an airtight container for up to 3 days. The celery softens slightly by day 3 but the flavor holds up well.
• Serve Cold – This is best straight from the fridge. It doesn’t need reheating and the texture is better cold.

What To Serve With Tuna Salad

A thick slice of sourdough or a toasted multigrain bread is the classic move, and the slight chew holds up to the creamy filling without going soggy too fast. For something lighter, spooning it into romaine lettuce cups keeps it crisp and cuts the richness a little. A handful of kettle-cooked potato chips on the side adds a salty crunch that contrasts well with the soft, creamy filling.

Frequently Asked Questions

Can I make this tuna salad the night before?

Yes. It actually tastes better after sitting overnight because the flavors have time to settle together. Store it covered in the fridge and give it a quick stir before serving.

Can I freeze tuna salad?

No. Mayo-based salads break when frozen and thawed, leaving a grainy, watery texture that can’t be fixed. Make only what you’ll eat within 3 days.

How do I keep the sandwich from getting soggy?

Toast the bread first. A lightly toasted slice creates a barrier that slows the moisture from the tuna salad soaking in, so the sandwich holds up for at least an hour.

Can I use tuna packed in oil instead of water?

You can, but drain it very thoroughly and expect a richer, slightly heavier result. The oil-packed tuna will make the overall salad feel more calorie-dense, and you may want to reduce the mayo by about 1 tbsp to keep it from feeling greasy.

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Tuna Salad Recipe

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Prep Time 10 minutes mins

Total Time 10 minutes mins

Servings: 4 servings

Ingredients Method Notes

Ingredients

  

• 2 cans (10 oz total) chunk light tuna in water, drained
• 3 tbsp mayonnaise
• 1 tsp Dijon mustard
• 1 tbsp fresh lemon juice
• 2 stalks celery, finely diced
• 2 tbsp red onion, finely diced
• 1 tbsp fresh dill, chopped
• ¼ tsp garlic powder
• ¼ tsp salt
• ¼ tsp black pepper

Method

 

1. Press the lids of both tuna cans firmly to drain all water, then tip into a medium bowl and flake the tuna with a fork until no large chunks remain.
2. In a small bowl, whisk together the 3 tbsp mayonnaise, 1 tsp Dijon mustard, and 1 tbsp fresh lemon juice until smooth, about 30 seconds.
3. Add the 2 diced celery stalks, 2 tbsp red onion, 1 tbsp fresh dill, ¼ tsp garlic powder, ¼ tsp salt, and ¼ tsp black pepper to the tuna. Pour the dressing over and fold gently with a spatula using 8 to 10 slow folds.
4. Taste and adjust salt or lemon juice as needed, then spoon onto bread or into lettuce cups and finish with a pinch of fresh dill and cracked black pepper.

Notes

For the best texture, dice the celery and red onion as small as you can, around ¼ inch or smaller. If you have 20 minutes before serving, a short chill in the fridge really does make a difference to the overall flavor. The salad keeps for up to 3 days, though the celery will soften a little by the third day.