Report Abuse. I bake salmon all the time. I line my pan with aluminum foil, place the salmon fillet in the pan, put on my favorite seasonings/toppings, seal it up, and bake it in a preheated 400º oven.If the topping is thick, like a mayonnaise topping with onion powder and dill sprinkled over it, my 8 oz piece of salmon takes about 30 minutes to cook.eport Abuse. I bake salmon all the time. I line my pan with aluminum foil, place the salmon fillet in the pan, put on my favorite seasonings/toppings, seal it up, and bake it in a preheated 400º oven.