Preheat the oven to 200C, fan-forced. Line an oven tray with baking paper. Cut the unpeeled pumpkin into 1cm-thick slices. Cut the onion into 2cm-thick wedges. Drain and rinse the chickpeas.
Step 2 — Bake vegetable mixture
Put the pumpkin, onion and chickpeas on the lined tray, drizzle with 2 tsp extra virgin olive oil and season with salt and pepper. Bake for 20 mins.
Step 3 — Make koftas
Meanwhile, put the beef mince, Moroccan seasoning, breadcrumbs and 1 egg in a large bowl and season with salt and pepper. Using damp hands, combine well, then shape into 6 round koftas.
Step 4 — Bake koftas
After the pumpkin has baked for 20 mins, put the koftas on top of the vegetable mixture and drizzle with 1 tsp extra virgin olive oil. Bake for a further 10-12 mins until the koftas are cooked through and the vegetables are tender.
Step 5 — Make dressing
While the koftas are baking, put the currants in a heatproof bowl. Cover with boiling water and stand for 5 mins. Drain, then return to the bowl. Add half the sumac*, 3 tsp extra virgin olive oil, 2 tsp red wine vinegar and 2 tsp honey, season with salt and pepper and stir to combine.
Step 6 — Get ready to serve
Scatter the spinach over the tray bake and drizzle with the sumac-currant dressing. Take the tray bake to the table and serve.