Prep: 1. Chop: onion, garlic, chorizo. 2. Set stock to simmer. 3. Preheat oven to 350. Make: 1. In an ovenproof pan: sauté onion and garlic in olive oil until just soft. 2. Add the rice and seasonings and brown lightly. 3. Add mushrooms and chorizo and enough warm stock to come above the rice. 4. Cover with a tight lid and bake in a 350°F oven until the liquid is completely absorbed, about 35 min.