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Cheesy Tuna Burger & Sweet Potato Fries

Cheesy Tuna Burger & Sweet Potato Fries

4.5rating out of 5

(250 reviews from our customers)

Prep Time

35 min



You'll flavour your tuna patties with lovely grated cheddar and sandwich them between sweet toasted brioche buns, topped with a classic burger sauce, crisp gem lettuce, zingy pickled shallot and served with sweet potato fries. What's the difference between a fish and a piano? You can't tuna fish!

Prep Time

35 min



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We send you everything you need to cook amazing recipes like this, delivered right to your door. Leave the planning to us!

For 2 people (double for 4)
1 shallot
1 little gem lettuce
1 British free-range egg †
1 tsp Dijon mustard †
40g mature cheddar †
Panko breadcrumbs edit
30g panko breadcrumbs †
1 sweet potato
tin of tuna
1 tin of tuna †
2 mayonnaise sachets (30ml) †
2 tomato ketchup sachets (15ml)
2 brioche rolls †
2 tbsp red wine vinegar †
You Will Need
Flour, olive oil, pepper, salt, sugar, vegetable oil

Nutritional Information*

Percentages are based on an adult's daily intake

  • 1 shallot
  • 1 little gem lettuce
  • 1 British free-range egg<span class="strong">†</span>
  • 1 tsp Dijon mustard<span class="strong">†</span>
  • 40g cheddar cheese<span class="strong">†</span>
  • 30g panko breadcrumbs<span class="strong">†</span>
  • 2 medium sweet potatoes
  • 1 can of tuna (160g)<span class="strong">†</span>
  • 1 mayonnaise sachet (10ml)<span class="strong">†</span>
  • 1 tomato ketchup sachet (15ml)
  • 2 brioche rolls<span class="strong">†</span>
  • 1 red wine vinegar sachet (30ml)<span class="strong">†</span>
Typical Values per 100g per serving
Energy 673 kJ
160 kcal
3578 kJ
851 kcal
of which saturates
7.6 g
3.8 g
40.5 g
20.3 g
of which sugars
17 g
3.9 g
90.3 g
20.6 g
Fibre 1.5 g 7.8 g
Protein 6.7 g 35.7 g
Salt 0.51 g 2.69 g
*Gousto’s nutritional information only applies to ingredients supplied by Gousto. The cooking process and additional ingredients added at home (listed under “What you’ll need”) will affect total values.
Ingredients contain
1 shallot
1 little gem lettuce
little gem lettuce
1 British free-range egg
1 tsp Dijon mustard
water, mustard seeds, spirit vinegar, salt, potassium metabisulphite (sulphites), citric acid
40g cheddar cheese
pasteurised cows milk, cream, salt, vegetarian rennet, lactic acid culture
30g panko breadcrumbs
wheat flour (gluten), sugar, salt, yeast
2 medium sweet potatoes
sweet potato
1 can of tuna (160g)
skipjack tuna (fish), water, salt
1 mayonnaise sachet (10ml)
soy bean oil (78%), free range pasteurised egg and egg yolk (8.9%), spirit vinegar, water, sugar, salt, lemon juice, antioxidant: calcium disodium edta, flavouring, paprika extract
1 tomato ketchup sachet (15ml)
tomato puree* (made with 138g of tomatoes per 100g ketchup), sugar, spirit vinegar (6%), modified maize starch, salt, acidity regulator (citric acid), preservatives: sodium benzoate and potassium sorbate, spices, yeast extract, natural flavourings, *made from sustainably grown tomatoes
2 brioche rolls
wheat flour (gluten) 49% (with calcium, iron, niacin, thiamin), butter (milk), pasteurised egg, water, milk, sugar, fresh yeast, salt, powdered pasteurised egg
1 red wine vinegar sachet (30ml)
red wine vinegar, preservative: sulphur dioxide (sulphites)
  • Allergens highlighted by † (egg, mustard, sulphites, milk, gluten, fish)

In addition to the recipe specific allergen information provided, due to production and packing methods Gousto boxes may also contain low levels of the following allergens: Cereals containing gluten; Crustaceans; Eggs; Fish; Peanuts; Soya; Milk; Nuts: almonds, hazelnuts, walnuts, cashews ,pecan nuts ,brazil nuts, pistachio nuts, macadamia nuts; Celery; Sesame; Sulphur dioxide and Sulphites; Lupin; Molluscs; Mustard.

Cooking Instructions
Instructions for 2 people (double for 4)
1 Cheesy Tuna Burger & Sweet Potato Fries

Preheat the oven to 200°C/ 180°C (fan)/ 425°F/ Gas 7

Grate the cheddar cheese 

Drain the tuna

Add the grated cheese, panko breadcrumbs, drained tuna and egg[s] to a large bowl with a generous pinch of salt and pepper 

Knead the tuna mix with clean hands for 1 min or until smooth

2 Cheesy Tuna Burger & Sweet Potato Fries

Divide the tuna mix into 2 [4] and shape into patties and refrigerate until later

Put the patties in the freezer to firm up

Tip: if the mixture is too wet, add some flour

3 Cheesy Tuna Burger & Sweet Potato Fries

Cut the sweet potatoes (skins on) into chips

Add the chips to a large baking tray with a drizzle of vegetable oil and a pinch of salt and give everything a good mix up 

Put the tray in the oven for 25-30 min or until the chips are golden and starting to crisp

4 Cheesy Tuna Burger & Sweet Potato Fries

Meanwhile, peel and slice the shallot[s] finely

Combine the red wine vinegar and 1 tsp [2 tsp] sugar in a small bowl 

Once the sugar has dissolved, add the sliced shallot and set aside – this is your pickled shallot

5 Cheesy Tuna Burger & Sweet Potato Fries

Combine the mayonnaise, ketchup and Dijon mustard in a small bowl and season with salt and pepper – this is your burger sauce

Remove 2 [4] whole outer leaves from the little gem lettuce and set aside for serving

Tear the remaining leaves into bite-sized pieces

Add the torn leaves to a bowl with 1-2 tbsp olive oil, a pinch of salt & pepper & give everything a good mix 

6 Cheesy Tuna Burger & Sweet Potato Fries

Heat a large, wide-based pan (preferably non-stick) over a high heat

Cut the brioche rolls in half 

Once hot, add the brioche cut-side-down and cook for 3 min or until lightly toasted 

Once toasted, transfer them to a plate and reserve the pan


7 Cheesy Tuna Burger & Sweet Potato Fries

Return the pan to a medium heat with a generous drizzle of vegetable oil

Once hot, add the chilled patties and cook them for 2 min on each side or until they're lightly browned


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Assemble your burger with the pickled shallot, whole lettuce leaves and burger mayo

Season the sweet potato chips with salt and serve with the remaining lettuce and burger mayo 


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