Prawn & avocado escabèche - Good Food Middle East

Ingredients

• juice of 3 limes
• 5 spring onions, thinly sliced
• 1 tbsp tomato paste
• large pinch dried oregano
• 300g ripe tomatoes, cherry or plum, finely chopped
• 1 green chilli, seeded and finely chopped
• 400g bag large frozen cooked, peeled prawns
• 2 ripe avocados
• 3 tbsp chopped coriander
• iceberg lettuce leaves and ready-cooked poppadums, to serve