cajun-spiced fish burger

cut the tuna into large chunks,place in a food processor and pulse until roughly minced.transfer to a bowl.

stir in the salad onions,cajun seasoning and sesame seeds.Using damp hands,shape the tuna mixture firmly into six evenly sized burgers.

grill or barbecue the burgers for around 5-7 minutes on each side until they are cooked through.

meanwhile cut the barmcakes in half and spread with mayonnaise.top with beetroot or tomato,then add the cooked burger and serve.