Broilers are very hot by design, so most broiled foods only need about 10 minutes to brown and cook through. Adding in some time for pre-heating, you shouldn't need to keep the oven set to broil ...
To broil: Put them on the prepared baking sheet ... Recipe courtesy of How to Cook Everything The Basics: All You Need to Make Great Food---with 1,000 Photos by Mark Bittman/Wiley, 2012.