If you want to roast these, you must use a nonstick baking sheet (affiliate link), or the thin eggplants will stick. It doesn't work to grease a regular baking sheet or line it with parchment paper. Let the eggplants roast at 500 degrees F until brown, then spray on some oil to finish roasting, so they won't be soggy. They will taste almost as good as the pan-fried eggplant and will have less fat and calories.