Cut any gnarly bits from the kumara and wash well

Cut into slices through slicer. Preheat oven to 180 c fan

Gently toss the slices with the oil and add a bit of salt and pepper. Try to make sure the oil is well distributed without breaking up the slices too much

Lay the kumara onto 6 large greased baking trays and roast in the oven in 2 batches.

once the kumara starts to take colour on 1 side (after about 20 - 25 mins) then carefully turn with a long fish slice and try to place the kumara back where it came from without disturbing too much. cook a further 15-20 mins until a little coloured and kumara is cooked through.

Cool and store in fridge

Cut spring onions reasonable fine and store

Add all sauce ingredients together and blend in a food processor till smooth.

Mix kumara, spring onion, spinach and dressing in a large bowl. Best served immediately as it will deteriorate if left longer than 10-15 mins.