Step 1

Bring a large saucepan of water to the boil. Add the spaghetti and cook according to pack instructions or until the pasta is al dente.

Step 2

Shortly before the spaghetti is ready, put the oil and garlic into a large deep frying pan or shallow saucepan over a medium-high heat. As soon as the garlic starts to sizzle, add the chillies and fry for 1 minute. Add the tomatoes and fry for a further minute. Add the lemon zest, lemon juice, prawns and some seasoning and cook for 11/2-2 minutes, until the prawns are heated through.

Step 3

Drain the spaghetti and add to the pan of prawns with the rocket and toss together well. Divide between 4 warmed pasta bowls and serve.