Preheat the oven to 200°C.
Cut the beets and red onion into wedges, the bell pepper into slices. Arrange them in a baking dish, then add the oil, oregano, vinegar, maple syrup, chilli (if used) and garlic. Add the sausages, then season with salt and pepper then toss well.
Bake for 25-30 minutes, or until everything cooked through well. Cover the dish with foil, if needed.
Meanwhile, rinse the quinoa thoroughly under running water, then cook it according to the packet instructions. Keep warm in the pan.
When the veggies and sausages are done, remove the skins of the beets (if not organic), onion and garlic. Cut the sausages into bite-sized pieces and mash the garlic into a paste. Mix the garlic well with the quinoa, then add the sausage and veggie pieces. Add the sticky cooking jus too (add more oil and lemon juice if it’s too sticky).
Toss everything well, then serve with the chopped parsley leaves.