Pan-Seared Halibut with Creamy Asiago Polenta topped with Puttanesca Sauce

Instructions: 

1. Polenta Preparation: Bring water and salt to a boil in a 3-quart heavy saucepan. Add polenta in a thin stream, whisking. Cook over moderate heat and continue whisking, 2 minutes. Reduce heat to low and cover pan. Then, cook at a bare simmer, stirring with a long-handled spoon, for 1 minute after every 10 minutes of cooking (45 minutes total). Remove from heat and whisk in butter and Asiago cheese until incorporated.
2. Fish Preparation: Warm oil in a sauté pan. Season fish with salt and pepper. Sear halibut for 3-1/2 minutes on both sides, or until golden brown.
3. Warm sauce in a saucepan.
4. In a bowl, spoon in polenta and top with halibut and sauce. Grate more cheese over the dish, if desired.