If you like to get as much food pre-done as possible before your guests arrive, this is the perfect recipe for you. You can make these chiles rellenos the day before and store them on a sheet tray lightly covered with plastic wrap. When your guests arrive, just remove the plastic and pop them in the oven. They are tasty and filling—a healthy, satisfying alternative to the traditional fried chiles rellenos. I serve these rellenos with black beans, salsa and guacamole.