Step 1

Position a rack in the lower third of oven and preheat oven to 250°C (230°C fan-forced). Line a large rimmed baking tray with baking paper.

Step 2

On the lined tray, toss asparagus with 1 tbs oil. Arrange in 1 even row over one-half of tray. Sprinkle three-quarters of the parmesan evenly over asparagus.

Step 3

Using paper towel, pat prawns dry. In a medium bowl, toss prawns with garlic, paprika, chilli flakes, if using, remaining 2 tbs oil, ¾ tsp salt and ½ tsp pepper. Spread the prawns evenly over the other side of the tray.

Step 4

Roast for 10 mins or until prawns are cooked through and asparagus is tender. Sprinkle prawns with parsley. Sprinkle asparagus with remaining parmesan. Serve with lemon wedges and bread.