remove the pastry from the freezer
set the oven to 200C 400F or gas mark 6, lightly coat the baking tray with oil using a pastry brush, peel and chop the butternut squash into cube, add the butternut squash cubes to the Baking tray and coat the cubes in oil, place in the oven, cook for 15 minutes or until soft
line a baking tray with greaseproof paper, lightly dust a clean work surface with flour, roll out the pastry into a rectangle 3 mm thick, score a 2 cm border around the rectangle, prick the pastry inside the rectangle only, place on a baking tray
add the egg(s) to a bowl, beat the egg, Egg wash the border of the pastry, place in the oven, cook for 10 mins, while the butternut and pastry are cooking
wash the leeks, slice the leeks, heat the butter in the frying pan, add the leeks
wash and finely chop the fresh rosemary, add to the frying pan, cook till the leeks are soft, puree the leeks using a hand liquidiser, taste and season with salt and pepper if necessary, set a side
cut the cheese into cubes
remove the butternut from the oven, remove the pastry from the oven, prick the pastry inside the rectangle only, using a fork squash the centre down
spread the leek puree on to the central rectangle of the pastry, sprinkle the butternut squash cubes over the puree, add the cheese, place in the oven, cook for 5 minutes, until golden brown, while the tart is cooking
peel and finely chop the shallot(s), mix the dressing ingredients together in a bowl
wash mixed leaves and place in a serving bowl. place a cross on the top of the cucumber, then slice the cucumber to form quarters, sprinkle over the salad leaves, wash the cherry tomatoes and then slice in half, sprinkle over the salad leaves
remove the tart from the oven, cut the tart into slices, place the tart on a serving plate, add the salad