Preheat the oven to 200 degrees Celsius.
Bake the sweet potato slices for approximately 10 minutes.
Combine nectarines, tomato, red onion, chil and lime in a bowl. Season with salt and black pepper. Taste to check if more seasoning is needed.
Mix the ingredients for the chimichurri in a blender until smooth. Taste to check if additional seasoning is neeed.
Preheat a pan over medium/high heat with a drizzle of olive oil.
Pat dry the prawns well using a paper towel. Add to the hot pan and fry for 1-2 minutes on each side, until browned.
When potatoes are done add about one tablespoon of chimichurri on each. Top with the fried prawns and nectarine salsa.