This is delicious. Using a pressure cooker will get this risotto on the table in 20 minutes. Beating in the butter and cheese in step four makes the risotto creamier. To cut down on... the fat, omit the butter and just beat in the cheese.
Heat 1 tablespoon of olive oil in a sauté pan over a medium-high flame. Sauté the shallots and thyme until the shallots start to soften. Add the mushrooms, sprinkle with salt and sauté until they start to wilt and darken, about 5 minutes. Turn off the heat, cover, and set aside to steam.
Add the stock and stir to mix. Lock the pressure cooker lid. When the pressure comes up, cook at medium-high pressure for 6 minutes. Use a timer for this or the rice will overcook. Take the cooker off the heat and run cold water over the lid to release the pressure and stop the cooking.