Potatoes baked with fish in the oven are tender and soft with a crispy crust. The fish acquires a slightly smoky taste and goes well with potatoes. You can use your favorite canned fish for the dish. This could be sardine, saury, tuna and others. If you have your own canned fish, you can also use it. Serve this dish for lunch or dinner. It is nutritious and healthy, as it does not contain excess fat.