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    Home » Recipes » Lunch

    Deli-Style Tuna and Sweetcorn Sandwich Filler

    Published: Jun 9, 2025 by Beth Sachs · Leave a Comment · This post may contain affiliate links.

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    Looking for a quick, tasty filler? This deli‑style tuna & sweetcorn sandwich filler is creamy, tasty, and brilliantly versatile – perfect as a sandwich or panini filling, or spooned over piping‑hot jacket potatoes.

    Tuna sweetcorn deli mix in a bowl.

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    Ready in under 10 minutes, this tuna and sweetcorn mayo filler is perfect for packed lunches and busy days. It’s also wonderfully versatile, allowing you to customise it with whatever you have in the fridge.

    Love tuna? You might also like my air fryer tuna melt recipe!

    Jump to:
    • ✔️ Why You’ll Love This Recipe
    • 🛒 Ingredient Notes
    • 🔪 How to Make Tuna Sweetcorn Mayo Sandwich Filler
    • Top Tips
    • 🍽️ Serving Suggestions
    • 📖 Variations
    • 🥡 Storage
    • ❓ Frequently Asked Questions
    • More tuna recipes
    • Recipe
    • 💬 Comments

    ✔️ Why You’ll Love This Recipe

    1. Fast & fuss‑free – just mix and serve.
    2. Flexible – lovely in sandwiches, paninis, wraps, or jacket spuds.
    3. Kid‑friendly – creamy, sweetcorn sweetness balances tuna’s savoury tone.

    🛒 Ingredient Notes

    Ingredient's for tuna sweetcorn sandwich filler.

    Good‑quality tuna - Choose tuna in brine or spring water for the best texture.

    Sweetcorn - Tinned (canned) or frozen works well – and it adds a bright, sweet crunch.

    Mayonnaise - For creaminess; swap half for Greek yoghurt if you prefer tang.

    Red onion - Finely chopped, it adds sharpness and crunch.

    Fresh parsley - Adds a pop of colour and freshness.

    Black pepper - Adds gentle heat.

    🔪 How to Make Tuna Sweetcorn Mayo Sandwich Filler

    Ingredients for tuna mayo in a bowl.

    One: Drain the tuna and sweetcorn and place all of the ingredients in a bowl.

    Tuna sweetcorn mayo.

    Two: Mix thoroughly, chill and serve.

    Top Tips

    • Ensure both the tuna and sweetcorn are well drained to prevent a watery mix.
    • If you have time, chill the mixture for 30 minutes to help the flavours meld beautifully.
    • A squeeze of lemon juice or a splash of vinegar can brighten the flavours and cut through the richness
    Tuna sweetcorn mayo.

    🍽️ Serving Suggestions

    This creamy tuna and sweetcorn mix is incredibly versatile and can be served in a variety of ways.

    Spread it on soft bread or ciabatta and press in a panini maker until golden for a warm, melty sandwich. It’s also delicious piled high on a split, buttery jacket potato – perfect for a quick and hearty lunch.

    For something lighter, wrap it up with crisp lettuce and cucumber slices, or simply spoon it onto toast and pop it under the grill for a quick and tasty mini tuna melt.

    📖 Variations

    • Add grated cheese (cheddar or mozzarella) for a richer filling.
    • Stir in a teaspoon of mustard or sriracha for spice.
    • Swap tuna for smoked mackerel or chicken for a different flavour profile.
    • Mix in chopped capers or cornichons for a briny twist.
    Tuna mayo sandwich filler.

    🥡 Storage

    Store - in an airtight container in the fridge for up to 3 days.

    If you're topping jacket potatoes, wait until just before serving to spoon it on to avoid the potato going soggy.

    ❓ Frequently Asked Questions

    Can I make this ahead?

    Yes! Cover and store in the fridge.

    Is it freezer‑friendly?

    Not really – the mayo separates when frozen.

    More tuna recipes

    • Air fryer tuna mwlt sandwich on a wooden board with salad and crisps.
      Best Ever Air Fryer Tuna Melt Recipe
    • Tuna pasta bake in a white baking dish.
      Easy Tuna Pasta Bake Recipe
    • A bowl of creamy tuna pasta salad.
      Best Creamy Tuna Pasta Salad with Mayo Recipe
    • A tuna burger on a toasted ciabatta roll with mayo.
      Easy Tinned Tuna Burgers

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    Recipe

    Tuna sweetcorn mayo sandwich filler.
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    5 from 1 vote

    Deli-Style Tuna Sweetcorn Sandwich Filler

    A creamy and versatile deli-style tuna and sweetcorn sandwich filler – perfect for paninis, wraps, and jacket potatoes. Ready in under 10 minutes.
    Course Snack
    Cuisine British
    Prep Time 8 minutes minutes
    Total Time 8 minutes minutes
    Servings 2
    Calories 242kcal
    Author Beth Sachs
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    Ingredients

    Metric - US Customary
    • 3 x 145 g Canned Tuna in Brine drained
    • 198 g Canned Sweetcorn drained
    • 4 tablespoon Mayonnaise
    • ½ Red Onion peeled and finely chopped
    • 1 tablespoon Fresh Parsley chopped
    • ¼ teaspoon Black Pepper

    Instructions

    • Flake the drained tuna into a medium bowl.
      3 x 145 g Canned Tuna in Brine
    • Add all of the other ingredients and mix thoroughly.
      198 g Canned Sweetcorn, 4 tablespoon Mayonnaise, ½ Red Onion, 1 tablespoon Fresh Parsley, ¼ teaspoon Black Pepper

    Notes

    Nutrition: 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.
    Nutrition Facts
    Deli-Style Tuna Sweetcorn Sandwich Filler
    Amount per Serving
    Calories
    242
    % Daily Value*
    Fat
     
    9
    g
    14
    %
    Saturated Fat
     
    1
    g
    6
    %
    Trans Fat
     
    0.01
    g
    Polyunsaturated Fat
     
    4
    g
    Monounsaturated Fat
     
    2
    g
    Cholesterol
     
    31
    mg
    10
    %
    Sodium
     
    400
    mg
    17
    %
    Potassium
     
    410
    mg
    12
    %
    Carbohydrates
     
    26
    g
    9
    %
    Fiber
     
    3
    g
    13
    %
    Sugar
     
    7
    g
    8
    %
    Protein
     
    18
    g
    36
    %
    Vitamin A
     
    495
    IU
    10
    %
    Vitamin C
     
    10
    mg
    12
    %
    Calcium
     
    28
    mg
    3
    %
    Iron
     
    2
    mg
    11
    %
    * Percent Daily Values are based on a 2000 calorie diet.
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    Hi, I'm Beth!

    Mum of three (and two crazy dogs), living in Cornwall, UK. I love creating easy, delicious and fuss-free recipes, perfect for busy families, just like my own.

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