Rinse the sweet potatoes, pat them dry and cut into large wedges. Do the same with the squash.
Put the wedges on a tray and then drizzle with the honey, olive and sesame oil. Toss everything together so that they are coated in the oil. Season with salt and pepper, add the garlic and chillies and roast in the oven for 45 minutes. Check on them once or twice and toss them round a bit.
Once the vegetables are fork tender, add the cheese and roast for a further 10 minutes or until it starts to melt.
Put the basil leaves, garlic, and oil in a mini chopper or blended and blitz until smooth. Drizzle the basil oil over the dish and scatter with the mixed seeds. Serve with quinoa or couscous.
Notes
You can use feta cheese or kefalotyri instead of the halloumi. A little fresh spinach mixed in at the end so it wilts is a great addition.