Roasted sweet potato, aubergine and red pepper with couscous

This is my take on Rose Eliot’s veggie stack with herby couscous. I was looking for a recipe for aubergine that’s a bit different to the usual ratatouille or moussaka, and this is one of my favourites! I used Jalapeño flavoured hummus, but you can use any kind that you like. I also had a…