One of my favorite fish dishes is fish risotto, particularly in the winter, with some fresh crusty bread and butter. It is somewhat labor-intensive, as you have to man the stove more or less constantly throughout, but it is pretty quick to cook.
I always keep a good bunch of heads and bones after I fillet any fish I catch (Corvina are perfect for this). I boil these in water to cover for an hour or so with a couple of chopped onions and carrots, as well as a bunch of whatever herbs are handy and salt and pepper. The resulting stock, once well strained, is extremely rich, and can be frozen and used when you need it, for seafood soups, stews and particularly risotto.
For the risotto I fry up some finely chopped onion and garlic in a good amount of olive oil for a bit (Soft, but not browning) over a medium-high heat, then add a few handfuls of Arborio rice and fry that for a couple of minutes too, stirring all the time. You can also add some pine nuts and/or raisins at this stage, if you want.
Then I turn up the heat to max and add a good splash of white wine and cook until it is just absorbed, stirring all the time. Then I start adding the fish stock (heating to near-boiling in the microwave or on the stove beforehand) a cup at a time, stirring all the time and adding more stock as required to stop the rice sticking or drying out.
After about 15 minutes of this the rice should be nearly cooked (Still having some good bite to it). Make sure everybody eating is at the table with beer/wine at this point. I add a final cup or so of stock, turn down the heat to minimum, or off completely, and lay the fish of choice (Again corvina is good), chopped into ~1” squares, on top of the rice. Cover the pan, wait a few minutes, then the fish should be cooked.
Sprinkle a good amount of parmesan cheese and gently stir to mix in the cheese (Without breaking up the fish too much). Serve and eat immediately, or it will overcook. It should be somewhat runny rather than sticky.
A non-stick pan or wok is the best to use to avoid sticking/burning, and if you stop after adding the last cup of stock, you have a great side dish for other meals too.