Wash the leek, cut in half and finely slice. Cut the broccoli into small pieces.
Fill up your biggest pan two-thirds of the way with water and bring to a boil. Cook your pasta following the packet instructions and drain.
Peel the clove of garlic and bash with a rolling pin to squash slightly. Heat the oil in a saucepan, add the garlic and leek and fry gently for 5 minutes until soft. Add the broccoli and fry for a few minutes, add the basil, cover and steam for 2 minutes.
Spoon the vegetables over the pasta, add the cheese, toss together and serve.