Preheat oven to 190°C (375°F). Place the pumpkin in a baking dish and sprinkle with a little oil. Bake for 30 minutes or until golden and soft.
Just before the pumpkin is ready, cook the pasta in a large saucepan of lightly salted boiling water until al dente. Drain. While the pasta is cooking, place the butter and sage in a saucepan over low to medium heat and allow the butter to simmer until a golden brown colour.
To serve, place the pasta in serving plates and top with the pumpkin and parmesan. Spoon over the brown butter and sage leaves and season with salt and pepper. Serves 4.