Prawns with black beans, chorizo and chipotle

1.Heat half the olive oil in a saucepan over high heat, add onion and sauté until starting to colour (5-7 minutes). Add black beans, stock, chipotle chillies, oregano and a good pinch of salt, and simmer over medium heat until well flavoured (5-7 minutes). Stir in spring onion and keep warm.

2.Heat remaining olive oil in a frying pan over high heat, add chorizo and fry, turning occasionally, until golden (2-4 minutes), then set aside on a plate. Add prawns to pan in batches and fry, turning once, until golden (2-2½ minutes each side).

3.Top beans with chorizo and prawns, scatter with coriander and serve with lime wedges.