Pre-heat the oven to 210C (190C fan) / 410F. Line two baking trays with non-stick baking paper.
Place the diced sweet potato in a large mixing bowl. Drizzle in 1 TBSP olive oil and stir until thoroughly coated. Transfer the potato to a prepared baking tray and distribute in a single layer. Season with salt. Roast for 30 minutes, or until cooked through.
Tip the brussels sprouts into the mixing bowl. Drizzle in 1 TBSP olive oil and stir through. Transfer the sprouts to the second baking tray. Arrange the sprouts cut side facing down. Season with salt (and black pepper, if desired).
When the sweet potatoes have roasted for 10 minutes, add the sprouts to the oven. Roast for 15 minutes, then flip them over and roast for a further 5 minutes, or until browned on both sides.
While the veggies are roasting, prepare the quinoa. First, rinse the quinoa (see Tip 1 below), then thoroughly drain and transfer to a saucepan. Add 3 cups water. Bring to the boil, then reduce the heat to low, cover with a lid and simmer for 15 minutes, or until the water has been absorbed and the quinoa is fluffy. Remove from the heat and leave to rest, covered with a lid, for 5 minutes. Drizzle in 2 tsp toasted sesame oil and stir through with a fork. Add 1-2 TBSP white miso and stir through until the quinoa is coated. Taste test and add more sesame oil/white miso if desired.
Tip the quinoa into the mixing bowl. Add the roasted veggies, cranberries and pumpkin seeds, and stir through. Transfer to bowls. Just before serving, add a drizzle of balsamic glaze.
This dish will keep for up to five days in the refrigerator.