0 g trans fat per serving. Guerrero Tostadas Casera are made with the highest quality white corn and are perfect for creating a variety of quick and exquisite Mexican dishes for the whole family. No matter how you enjoy them, Guerrero Tostadas Caseras are golden brown, with that perfectly toasted color, and always crunchy with a thickness and wavy shape that make them unmistakably home made. Gluten free. Freshly baked at your Guerrero Bakery. Visit tortillasguerrero.com.