Arborio Style Rice in Creamy Sauce. Deliciously creamy and satisfying, Knorr Italian Rices are classic Risottos - a short grain rice preparation evolving from the traditional cuisines of Northern Italy. Knorr Mushroom Risotto is a delicious recipe from Lombardy - rich with tender sliced mushrooms and a unique blend of herbs and spices. Knorr Rices are made with all natural flavors. 1/3 Cup makes 1 cup prepared.