Cleaning a broiler pan is simple. Most pans are dishwasher safe, so you can just pop them in the dishwasher when you're done cooking. If your pan is not dishwasher safe, you can clean it by hand. Just use hot water and soap to wash it, and make sure you scrub all the nooks and crannies. Be careful not to use anything too abrasive, as this can damage the pan. When you're finished washing it, dry the pan thoroughly to prevent rusting.