Add the prawns and toss in the garlic. Stir in the mascarpone, rocket, lemon zest and juice and heat for a minute or so, or until the rocket wilts. Drain the pasta and peas, add to the sauce and ...

Scatter on top of the tomatoes and cook for a further 2–3 minutes at 180C, or until the garlic and tomatoes are softened and the prawns are hot. Drain the pasta and return to the saucepan.