Preheat the air fryer to 400°F (200°C).
Line the air fryer basket with parchment paper and place the boiled potatoes on it close together. Use the bottom of a flat bowl or glass to gently press the potatoes until they are thin and flat.
Drizzle the olive oil over the potatoes and season with salt and black pepper.
Air fry for 20–25 minutes, or until the potatoes turn golden brown and crispy.
Meanwhile, make the dressing. Add the curd and mayonnaise to a large bowl and whisk until smooth. Add the chopped tomato, onion, cucumber, coriander, garlic, lemon juice, salt, and pepper. Mix well.
Let the potatoes cool, then break them into small, 2-inch pieces. Add them to the bowl with the veggies and dressing.
Gently mix everything together and garnish with chopped green onions.