Using a fork, prick each potato several times and rub over with the oil.
Heat oven to Gas 4,180ºc, fan 160ºc. Place potatoes on the oven shelf and cook for 40-45 minutes, or until soft when pierced with the point of a sharp knife.
Remove from the oven and cut each in half lengthways and top with half a tub of the tuna and sweetcorn filler. Garnish with parsley sprig and serve immediately.
Thanks to our helpful new range of recipe suggestions on pack, you can use those everyday ingredients found in your store cupboard and fridge to create something totally new and equally tasty. Look out for Just a suggestion on packs in store now. Click here for more info.