Preheat oven to 450 degrees and place a large baking sheet into the oven to preheat as well. This helps the eggplant to crisp up right away. Slice your eggplant into 1/4 inch pieces using a sharp knife.
Pull out the baking sheet and spray with cooking spray. Dip the eggplant into the egg whites and then coat on both sides with the bread crumbs. Place onto the baking sheet. Repeat until all of the eggplant are done.