Place the quinoa in a fine mesh sieve and rinse well under cold running water. This helps remove the bitter coating on the quinoa. Drain and place a saucepan with 1 cup of water. Bring to a boil, cover and reduce heat to low and cook for 12 to 15 minutes, or until the quinoa is tender. When the quinoa is cooked leave covered until you are ready to use it.
Peel the pumpkin and cut into 2cm (3/4 inch) thick disks. I suggest using the top part of the pumpkin to avoid the seeded section. Cut each disk in half.
In a bowl whisk the miso, mirin, soy, honey, rice wine vinegar and sesame oil until combined. Toss the pumpkin in the glaze. Take four large pieces of baking paper and divide the quinoa between each sheet. Top with the glazed pumpkin, ensuring the quinoa is well covered by the pumpkin. Fold over the edges of the baking paper to cover the pumpkin, making sure it is well sealed. Bake for 25 to 30 minutes, or until the pumpkin is tender.
Serve with steamed greens, a wedge of lime and coriander leaves.