Preheat the oven to 220 ° C. Cut the pumpkin into medium slices 1.5 cm thick. Cut the peel, remove the seeds and the core. Put the pumpkin on a greased parchment lying on a baking sheet. Sprinkle with a mixture of cinnamon, salt, black pepper and allspice. Bake until soft, about 10 minutes.
While pumpkin is baking, chop nuts. Mix honey with vinegar, salt and pepper.
Peel the pear, cut in half lengthwise, remove the core. Cut the flesh across into thin slices.
Place arugular on plates, put pumpkin and pear slices on it.
Dredge with nuts, pour with dressing and olive oil, and serve immediately.