A Loaded Tuna Sandwich is such a classic sandwich choice, and always our go-to for an easy lunch when we don't feel inspired to make anything else. We have taken flakes of canned tuna and mixed it with crunchy celery, gherkins, spring onions, cucumber and sweetcorn and some mayo of course and sandwiched it between two slices of sourdough.

I always say that if you have a tin of tuna in your cupboard, then you have the base for a filling meal. Protein packed and versatile, we love a classic tuna sandwich and this loaded version has crunch, flavour and it's easy to adapt too. Use it in a plain sandwich, as a toastie or even on a salad.
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Why you will love it
- A totally loaded sandwich
- Takes just minutes to make
- Really crunchy
- Under 500 calories per sandwich
- High in protein
- Easy to adapt
Step by step
One: In a large bowl, mix together the tuna, celery, cucumber, spring onions, gherkins and sweetcorn mix in the mayo, lemon juice and salt and pepper.
Two: On two of the slices of bread, add the tuna mix.
Three: Top with sliced tomato, the rocket (arugula) lettuce and the second slice of bread.
What else can be added?
We love a versatile and easy to adapt sandwich and this is exactly that. We have only used these ingredients because that's what we had in our fridge at the time. Next time I think I will add some slices, or even mashed, avocado to it.
I think that chunky and crunchy ingredients are a must, which is why we went with celery, cucumber, gherkins and sweetcorn. But if you like things spicy, why not chop up some jalapenoes to go in there too or some red onion for colour.
If you don't like tuna, then you could swap it for chunks of cooked chicken and keep all of the rest of the ingredients the same.
Best bread to use
This is totally a preference thing, but we think that sourdough is the best bread to use for a sandwich. But this also works well in a bagel and a croissant - trust us on this.
You don't have to use bread at all. You could scoop this in to an avocado half for a low carb alternative or just have it on a salad.
Sandwich sauce
We kept this tuna fish sandwich classic with some mayo and a squeeze of lemon juice to lighten it up a bit. But you could add in some mustard and fresh chopped herbs for more flavour. Dill or parsley would work well.
If you want to make this lower in calories, then you could swap the mayo for Greek yoghurt which we love using as a mayo alternative. Or do it half and half to reduce the tart flavour. A drizzle of sriracha goes a long way too.
What to serve with this
These sandwiches are pretty epic as they are, but if you are serving them up to guests, then why not make a big batch of our Mexican Coleslaw to go with it as well some of our amazing Homemade Garlic Crisps.
FAQs
Once the sandwiches are made I would recommend serving and eating them as soon as possible, otherwise they will get a bit soggy. However, if you make too much of the filling and want to save it, then put it in an air tight container and then it will keep fresh in the fridge for 2 days.
Extra tips
• Why not try adding some avocado for a little bit of extra creaminess or some chopped jalapenos if you like things spicy. You could add a drizzle of Sriracha too.
• If you want to save some calories with this sandwich, swap the mayo for Greek yogurt, or go half and half.
• You can add some extra flavour with a teaspoon of dijon mustard and some chopped fresh parsley or dill.
• If you don't like tuna, try making this with leftover shredded chicken.
• Swap the slices or bread for a bagel, or try putting it on a croissant.
• If you want a low carb version of this, put the filling in to half an avocado (that has had a little scooped out, then pile the filling up) or on a salad.
• Leftovers of the filling will keep in the fridge in an airtight container for 2 days.
More sandwich recipes
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Recipe
Loaded Tuna Sandwich
Ingredients
- 4 slices Sourdough bread
- 110 g (3.5 oz) Tuna - canned; drained
- 2 Spring onion (Scallion) - sliced
- 2 tablespoon Light mayonnaise
- 0.5 Lemon - (juice only)
- 1 pinch Sea salt and black pepper
- 100 g (5 cups) Rocket (arugula)
- 1 rib Celery - diced
- 4 tablespoon Sweetcorn
- 0.25 Cucumber - diced
- 2 Gherkins - chopped
- 1 Beef tomato - sliced
Instructions
- In a large bowl, mix together 110 g Tuna, 1 rib Celery, 0.25 Cucumber, 2 Spring onion (Scallion), 2 Gherkins and 4 tablespoon Sweetcorn.
- Mix in2 tablespoon Light mayonnaise, juice of 0.5 Lemon and 1 pinch Sea salt and black pepper.
- On two of the 4 slices Sourdough bread, add the tuna mix.
- Top with 1 Beef tomato (sliced), 100 g Rocket (arugula) and the second slice of bread.
Recipe tips
- Why not try adding some avocado for a little bit of extra creaminess or some chopped jalapenos if you like things spicy. You could add a drizzle of Sriracha too.
- If you want to save some calories with this sandwich, swap the mayo for Greek yoghurt, or go half and half.
- You can add some extra flavour with a teaspoon of dijon mustard and some chopped fresh parsley or dill.
- If you don't like tuna, try making this with leftover shredded chicken.
- Swap the slices or bread for a bagel, or try putting it on a croissant.
- If you want a low carb version of this, put the filling in to half an avocado (that has had a little scooped out, then pile the filling up) or on a salad.
- Leftovers of the filling will keep in the fridge in an airtight container for 2 days.
Nutritional Information
The nutritional information provided is approximate and is calculated using online tools. Information can vary depending on various factors, but we have endeavoured to be as accurate as possible.
Platter Talk
Looks like this tuna sandwich is something I could fall in love with; every day and night!
chris @ SimpleFood365
I would love to have this on my lunch plate! YUM!
Patti @ CooksRecipeCollection.com
Love adding all the fresh veggies and cheese to your tuna sandwich! Great combination!
Razena | Tantalisemytastebuds.com
I love the idea of a sandwich with tuna salad and cheese. I would probably grill it to melt the cheese :(
Cassandrea @ chewsandbrews.ca
I am always looking for a new way to make a great tuna sandwich and I think I have found it here! Yum!
Claudia | Gourmet Project
looks so fresh 6 healthy!
Niels @ Have Another Bite
Tuna and rocket salad...I'm in! Love the colorful recipe and pics!
Brian Jones
Wow, now that is what I call a sandwich, sounds absolutely delicious... I may have to knock this out for lunch today :D
Renee
Ok, now I'm craving a tuna sandwich. I am seriously so glad that I need to go the the store in the morning, because I just added tuna to my list. This seriously looks so good!
foodlovinfamily
Love the colors in this sandwich! Looks delicious.
Tina Marie
Tuna Salad is a favorite of my husbands. He's really going to like this.
Sarah
Yay for gluten free sandwiches! This looks like the perfect lunch!
Leslie
Wow that looks so refreshing and tasty! Eating with vibrant colors is the best way to a healthy lifestyle.
Byron Thomas
This sandwich is making me so hungry. I love tuna salad! This recipe looks really good. I've never added lemon to my tuna salad, but I'll give it a shot!
Judy@ImBoredLetsGo
I like the addition of the peppers in the tuna! And with cheese...a yummy sandwich!
Noor
Yes, yes! This sandwich is soooo right. Perfect as a light meal for my diet plan, that I will be hopefully starting soon!
Marisa Franca @ All Our Way
Tuna is our favorite go-to lunch or travel meal. Looking forward to trying your recipe.
Rosemary @anitalianinmykitchen
Tuna is one of my favourite sandwiches, and this looks so delicious.
Kelly - Life Made Sweeter
Love this loaded tuna sandwich! It's one of my favorites. Your looks so healthy and delicious!
karrie @ Tasty Ever After
Tuna sandwiches are so comforting. I could eat them every day with a big bag of salt and vinegar potato chips....oops, chips aren't healthy! lol! Anyhow, love this tuna sandwich recipe and I'll have to look for Leerdammer cheese in stores here. Have fun in Switzerland! :)