Creamy Sandwich Tuna Spiked with Mexican Spices

Warning! If this recipe won’t make you love tuna, nothing else will!

One of the easiest and possibly healthiest way to add fish into your diet is to use sandwich tuna readily available at the supermarket. Tuna is an excellent source of omega 3 fats and protein.

While some enjoy eating tuna straight out of the can with crackers or in sandwiches, unflavored canned tuna preserved in oil, brine or spring water has a strong taste that is off-putting to most.

So more commonly canned tuna is made palatable with the addition of mayonnaise and sometimes even mustard. But you will agree that common tweak has become boring and needs a makeover!

Our neat little recipe takes it miles further by using bell peppers, jalapeños and a Mexican spice mix that will make your canned tuna sing!

If you are familiar with the Subway menu, you will see we have turned the heat up a notch on that classic Subway tuna sub and transformed it into this hearty toastie with a spicy, gooey and insatiable tuna filling.

spiced tuna toastie

So here is how you would make yours,

Tuna tossed in Spicy Mexican rub and finished inside a Toastie!

Prep Time: 10 minutes

Cook Time: 5 minutes

Total Time: 15 minutes

Yield: 500g

Serving Size: 90-100g


  • 4 slices of smooth wholemeal bread
  • 400g can of tuna (in brine; drained)
  • 1 large onion chopped
  • 1 capsicum chopped
  • 2 tbsp Old El Paso Mexican seasoning (or mix together powdered cumin and cayenne pepper in 1:1.25 ratio)
  • 1 tsp cayenne pepper (optional, add only if using store bought seasoning)
  • 1 Jalapeño chilli deseeded & diced
  • 1 tbsp Tomato paste
  • 2 tbsp Mayonnaise
  • Olive Oil - 1 tbsp


  1. Heat oil in a non-stick pan (on medium heat)
  2. In half a minute, turn the heat down, add the chopped capsicum & onion; let it sizzle for a minute;
  3. Add the Mexican seasoning and stir well to coat the veggies; remove from flame.
  4. {{WARM the sandwich maker}}
  5. Transfer the canned tuna to a small bowl and stir in the seasoned onions & capsicum
  6. ADD in cayenne pepper, diced jalapeno, mayo & tomato paste
  7. STIR well to combine
  8. SPREAD on 2/4 bread slices; cover with the other 2 (90-100g per sandwich is generous)
  9. GRILL until toasted.
  10. SERVE


Optional extra: garnish with some finely chopped coriander (cilantro) leaves

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If you love the recipe, please share the good word around 🙂 thanks!

Be sure to try out our recipe to make some delicious Kerala Style tuna too! This one’s a winner if you are craving for some Kerala style fish preparation; and can be made in a jiffy! It is no wonder why we make this every week. It is perfect for lunch as a sandwich or with brown rice. Yum!

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