Fry the shrimp and the spring onions cut into rings in a little olive oil. Deglaze with coconut milk and a dash of white wine and reduce a little. Add the curry paste and mix in. Season with salt, pepper and lemon juice.
Cook the spaghettini al dente in plenty of salted water.
Drain the pasta, mix with the sauce, add the mandarin wedges, sprinkle with a few rolls of spring onions and serve immediately.