Add the rice and cook for about four to five minutes or until lightly toasted and evenly coated with the oil.
Add the wine, mushrooms and spinach, reduce the heat to low.
Stir until the wine is absorbed by the rice.
Meanwhile, heat the broth to lukewarm in a separate saucepan or microwave oven, then add about a half cup to the skillet.
Stir often to and allow it to be absorbed by the rice. Repeat using about a half cup at a time over about 30 minutes until all the broth has been absorbed.
When the rice has reached the ideal texture (normally this would be slightly al dente) stir in the butter and cheese.