There are days when you just need a lunch that’s fast, comforting, and requires zero reheating. That’s exactly why this tuna salad sandwich has been a go-to in my kitchen for years. It’s creamy, crunchy, and packed with flavor thanks to simple pantry ingredients and a few fresh veggies.
The best part? You can prep the tuna filling in about 15 minutes and enjoy easy lunches for several days. It’s perfect for busy workdays, road trips, picnics, or any time you need a reliable no-reheat meal prep option. Just keep the filling in the fridge and assemble the sandwiches the day you plan to eat them so everything stays fresh and delicious.
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How to change this tuna salad sandwich recipe
- Instead of using bread and making this a sandwich, you could put this in a wrap, pita pocket, or lavash. You could also eat it as an open-faced sandwich.
- Sub cucumber for celery if you don’t have it on hand or do not like it
- You can also use chopped pickle spears instead of pickle relish
- Any leafy green will work if you don’t want to use spinach! Use what you have/ what you enjoy!
Not a fan of mayo? Tahini or mashed avocado mixed with lemon or lime juice can also work. It will change the flavor profile, but still be delicious!
Related: Cold Lunch Ideas: Meal Prep Recipes When You Don’t Have A Microwave
Dietary Swaps (Dairy-Free / Gluten-Free)
This recipe is naturally flexible and easy to adapt.
Gluten-Free
- Use your favorite gluten-free bread or wrap.
Dairy-Free
- The base recipe is dairy-free as written.
Mayo Alternatives
If you’re not a fan of mayo, try one of these instead:
- Mashed avocado + lemon juice
- Tahini + lemon juice
- Plain Greek yogurt for a creamy texture
- Olive oil + a squeeze of lemon
Each option changes the flavor slightly but still creates a creamy, delicious tuna salad.
Choosing the best tuna
Canned or pouch tuna both work in this recipe, but cans tend to be bigger so you need to buy fewer.
I like to buy solid tuna packed in olive oil, but chunk tuna and tuna packed in water work perfectly too. This is definitely my favorite canned tuna! Trader Joe’s and Whole Foods both have good quality tuna packed in olive oil.
Here are a few tips:
- Solid tuna in olive oil has the richest flavor
- Chunk tuna works great for a softer texture
- Water-packed tuna is lighter but still delicious
- Flavored tuna packets can add extra variety
If tuna isn’t your thing, canned chicken works perfectly with the same ingredients.
Related: Picnic Food: No-Reheat Meals for a Perfect Picnic
How many sandwiches does this recipe make?
This recipe makes three sandwiches because it is designed to be used as meal preps for the week! Of course, if you want to double this recipe, simply double the ingredients!. The tuna filling will last 3-4 days in the fridge.
Related: 70+ Best Camping Meals (Easy and Affordable!)
Can you make tuna salad without mayo?
Yes! You can easily swap out mayo for plain Greek yogurt to get a similar result. You can also try using an olive oil-based dressing like in this recipe.
How to store this tuna salad sandwich:
As mentioned above, this meal will taste the best when the tuna filling is stored in the fridge and the sandwiches are assembled the day you plan to eat them!
Storage tips:
- Store the tuna salad filling separately in an airtight container.
- Keep bread and greens separate until ready to eat.
- Assemble sandwiches the day you plan to eat them for the best texture.
Shelf life
- Tuna salad filling lasts 3–4 days in the fridge.
- Not recommended for freezing.
If you prefer extra crunch, lightly toast the bread before assembling.
FAQ
How long does tuna salad last in the fridge?
Tuna salad lasts 3–4 days in an airtight container in the refrigerator. For the best texture, store the filling separately and assemble sandwiches right before eating.
Can I make tuna salad sandwiches ahead of time?
Yes, but it’s best to prep the filling in advance and assemble the sandwiches the day you eat them. This keeps the bread from getting soggy.
Can I make tuna salad without mayo?
Absolutely. You can use Greek yogurt, mashed avocado with lemon juice, or tahini as a creamy alternative. Each option slightly changes the flavor but works great.
What bread works best for tuna salad sandwiches?
Any sturdy bread works well. Try whole wheat, sourdough, sandwich bread, or a wrap depending on your preference.
Can I freeze tuna salad?
Tuna salad is not freezer-friendly because the mayo-based dressing separates when thawed. It’s best enjoyed fresh within a few days.
Toast your bread before assembling if you prefer. Happy prepping!
Related: 25 Easy Meal Prep Lunches For Beginner Home Cooks
Other delicious recipes to check out:
Meal Prep Tuna Salad Sandwiches
Instructions
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Flake the tuna into a large mixing bowl. Add the mayo and stir until combined.
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Add the pepper, onion powder, garlic powder, and celery seed and mix well with a fork to combine until all the seasonings are well incorporated. Add the chopped celery, bell pepper, and relish and mix again to combine. Taste the mixture and add salt and pepper if needed, and any extra seasonings to your liking.
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To assemble the sandwiches before eating: spread about 1/3 of the tuna mixture onto one slice of bread. On the other slice, spread with more mayo if desired, I like to keep mine dry. Top with greens of your choice and enjoy!
