Though technically this falls under the category of slow roasts, it’s really only slow in contrast to how you might otherwise cook salmon (stovetop, over high heat.) This fish will spend only about 30 minutes in the oven, but the benefit of cooking it at low heat for an extended period of time is that you can’t really mess it up. Whereas skillet roasted fish goes from raw to overcooked in just minutes, a slow roast in the oven provides the luxury of time to test for doneness.