Preheat the oven to 200C. Mix the roast veg ingredients together and roast in the oven on a roasting tray for 40 mins.
To make the black beans. Heat the oil in a pan add the beans, spices and a generous amount of salt. Fry for 10 mins.
Blend the avocado cream Ingredients. In another bowl mix the yogurt dressing.
Grab a pittas, spread over the avocado top with the veg and beans and drizzle over the yogurt dressing.