First, make Salsa!
4 large tomatoes
Small red onion, peeled
1 fresh green chilli, halved and de-seeded
small bunch fresh coriander, washed and finely chopped
Small garlic clove, crushed
Juice and zest of a lime
Salt and pepper
Chop the tomatoes into 5mm dice (removing the seeds first stops the salsa becoming too watery) and place into a serving bowl. Finely dice the red onion and add it to the tomatoes. Chop the chilli very finely then add it to the mixture together with the rest of the ingredients. Stir thoroughly.
Allow the salsa to stand for at least an hour to let the flavours develop. Alternatively, refrigerate in an airtight container for up to two days.
Lightly oil a baking sheet and put your fillets of fish on it. Cover each fillet with salsa, then top with a layer of
Welsh rarebit about 2-3mm (1/8") thick. Place under a hot grill for three or four minutes then serve.
This recipe is superb with smoked haddock and mackeral.