warm mackerel saladrating:
Boil new potatoes chopped to bite size pieces.
Whilst they're boiling, roughly chop tomatoes, spring onions, smoked mackerel, add to half a can of black olives and mix with a big spoon of mayo and a small spoon of wholegrain mustard.
Line a sieve with spinach leaves, and slowly drain the potatoes through the spinach to wilt it slightly. Combine the spinach / potatoes with the fish and vegetables and serve.