Snack

Tuna and Sweetcorn on Crispbread

Name: Tuna and Sweetcorn on Crispbread
Prep time: 5 min
Total time: 5 min
Yield: 1 serving
Ingredients: 80 g Tuna in spring water, drained; 40 g Sweetcorn, tinned and drained; 1 tbsp (15 g) Light mayonnaise; 2 crispbreads, about 20 g Rye crispbread; A squeeze Lemon juice; Plenty Black pepper

The sandwich-shop filling with light mayonnaise, on two rye crispbreads instead of a baguette. 22 g of protein for 235 kcal.

Calories: 235kcal
Protein: 22g
Fat: 6g
Carbs: 22g

Per serving, makes 1. 5 minutes of work. Published 8 September 2026.

Allergens

Gluten
Eggs
Fish
Mustard

Flags follow UK labelling rules and come from the ingredients as listed, not from any particular brand. Check the packet before cooking for somebody with an allergy.

Ingredients

Tuna in spring water, drained80 g
Drained weight. Tuna in oil is about 190 kcal per 100 g even after draining.
Sweetcorn, tinned and drained40 g
Drained weight.
Light mayonnaise1 tbsp (15 g)
Rye crispbread2 crispbreads, about 20 g
Lemon juiceA squeeze
Black pepperPlenty

Method

Drain the sweetcorn and pat it dry on kitchen paper so it does not water the mayonnaise down.
Fork the drained tuna with the mayonnaise, sweetcorn, lemon and a lot of black pepper.
Spread thickly over the crispbreads and eat within the hour.

Worth knowing

Light mayonnaise at 15 g is 45 kcal. The full-fat version is 105 for the same spoon, which is most of the difference between this and the version from the shop.
Rye crispbread holds a wet topping for an hour or so. Rice cakes do not.

Other snack recipes that share ingredients with this one, or every snack under 300 calories a serving.

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Macros are calculated from the weights listed above using standard food composition values, and will shift with your own brands and measuring. Weigh what you can. This is a recipe, not dietary advice. The full health disclaimer is below.