Toss pumpkin, parsnips and spring onions in cumin and 1 tablespoon of olive oil. Place on a baking tray with the beetroot and capsicum. Bake in a 200°C oven for 15 minutes before adding the zucchini and tossing with 1 tablespoon more oil. Bake for a further 25 minutes. When the capsicum is blistered, remove from the oven and put into a plastic bag to sweat. Once cool enough, remove and peel. De-seed the capsicum and puree with salt pepper and stock.
Prepare couscous as directed on package. Place couscous in a serving bowl, top with vegetables, any pan juices and the capsicum sauce.