Poke holes all over the eggplant(s) so you don't have to clean up exploded eggplant from the oven (I've done this). Place the eggplant(s) on a baking sheet and bake for about 30 minutes, turning half way through.
Cover a baking sheet in tin foil (for easy clean-up).
Pre-heat oven to 450F. Move rack close to the top of oven.