1 large potato (250g–275g/9–9¾oz), well washed (see Recipe Tip)
50g/1¾oz frozen sweetcorn
½ x 400g tin beans in chilli sauce
pinch dried chilli flakes (optional)
145g tin tuna chunks, well drained
ground black pepper
10²µ/â…“o³ú cheddar, finely grated