Curry leaves are increasingly available in supermarkets and can be found in many Indian or South East Asian grocers. Fresh curry leaves freeze well and retain their flavour for many weeks ...
Curries from South East Asia require different seasoning from Indian curries. Thai curry pastes tend to be hotter and more fragrant than Indian ones, and are flavoured with fresh chillies.
Arrange remaining pumpkin slices on a platter or large shallow bowl and spoon the curry over and around them. Scatter with fresh ginger and squeeze lime overtop. To finish: Heat oil in a small pan.
Add mustard seeds and cook until they crackle, 20 seconds. Add curry leaves and sauté until aromatic, about 30 seconds more. Add onions and cook until translucent, 3-4 minutes. Stir in ginger ...