Preheat the oven to 200C or 180C fan forced.
Toss the ingredients in a 33 x 22cm baking dish, then roast for 25 minutes.
Add the risoni, stock, water and salt to the baking dish. Stir, then shake the pan to spread the risoni out evenly.
Cover with foil, then return to the oven for 20 minutes or until the risoni is tender.
Remove from the oven. It will seem like there is too much liquid, but have faith! Stir briefly to loosen the risoni. Add three-quarters of the feta, then stir until it is partially melted – some can remain as smeary lumps. It should be quite creamy like risotto. If it’s too thick, add a splash of hot water.
Stir through basil leaves, crumble the reserved feta on top, then serve immediately!
