Halibut Fillet( preferably with the skin on if it is not too thick. Sweat up chopped onion in olive oil(not caramalised) As the onions are slowly softening add salt and ground black pepper. Using a good rapeseed oil sear the salted Halibut steaks/fillets( skin side down if it has the skin on) in a pan with a table spoon of hot rapeseed oil until the skin is browning or the fish is slightly browning on the one side. Remove the fish from the heated oil and set aside. It should not be cooked through. Then add tomatoes to the softened chopped onion. You can add chopped mushroom, courgette, or aubergine to the softened onions as well but not to much of either of them. The tomatoes must be a good tin( I use tin Cirio plum tomatoes when local plum or cherry tomatoes are not available) or skinned and cored cherry or plum tomatoes. Add to the onions and then crushed garlic( must be crushed through a proper garlic press) and a couple of tablespoons of grated Lancashire cheese or similar. I am using M&S Dewlay Lancashire which is great for cheese sauces and cooking in general. Warm the tomatoe, onion, cheese mixture through until the cheese melts in. Add this to deep bowls and place the Halibut on top browned side up. This goes into a hot oven and after 10 minutes or so when the halibut is just about cooked through cover the sides of the Halibut over the top of the tomato mixture with more of the grated Lancashire cheese and back in the oven until the cheese is bubbling. Do not put the cheese over the Halibut and if the Halibut had skin you can further crisp it with a chefs blow torch. Tonight I am even adding a few king prawns to the tomato mixture when it goes in the oven. Red or White wine is good with this dish.