Step 1Cook pasta in a large saucepan of boiling water following packet directions until tender. Drain. Cover to keep warm.
Step 2Meanwhile, heat half the oil in a large frying pan over a medium-high heat. Add garlic and chilli and cook, stirring, for 1-2 minutes or until fragrant. Add prawns and cook for 3-4 more minutes or until prawns turn pink and are almost cooked through.
Step 3Add cooked pasta, 1 tablespoon lemon zest, 2 tablespoons lemon juice and parsley to pan. Cook, tossing, for 1 minute or until combined and prawns are cooked through.
Step 4Meanwhile, blanch asparagus and broccolini in a saucepan of boiling water for 2-3 minutes or until bright green and tender-crisp. Drain then dress with the remaining oil and 1 more tablespoon lemon juice.
Step 5Serve pasta with asparagus and broccolini on the side and garnish with extra parsley.