Eggplant can be roasted whole or in slices, like zucchini; toss slices on a baking sheet with olive oil, salt, and pepper before roasting. The flesh can be used in recipes such as baba ghanoush and eggplant caviar.
Preheat oven to 400 degrees. Pierce the skin in several places. Roast on a baking sheet until soft, 35 to 45 minutes. Remove from oven, and let cool. Slice eggplants open, and scoop out flesh.