Preheat oven to 425 degrees. Pour oil into a baking pan or pizza pan. Dip eggplant slices in oil, coating both sides and bake for 10 minutes. Remove pan from oven and turn slices over. Cook for about 10 minutes more. Remove slices to a platter, and sprinkle with lemon juice, oregano, salt and pepper. Serve at room temperature with roased chicken or turkey. Serves 3.