Sauté the sausage: Heat olive oil in a large skillet over medium heat. Add the sausage and cook until browned, breaking it up with a spoon. Remove the sausage from the skillet and set aside..
Cook the risotto: Cook the risotto according to directions on package or until the rice is creamy and al dente.
Add the peas: Stir in the frozen peas and cook for 2-3 minutes, or until heated through.
Finish the dish: Stir in the Pecorino cheese and cooked sausage. Season with salt and pepper to taste.
Serve immediately: Enjoy your risotto while it's hot.