Stuffed corn tortillas with seasoned pork, beans & roasted green chiles. Delicious stuffed corn tortillas. Pork raised without antibiotics. Milk free. US inspected and passed by Department of Agriculture. Please recycle. What's a Pupusa? Originating from El Salvador, a pupusa is a stuffed corn tortilla filled with delicious goodness, such as Shredded Pork Carnitas. Our tortillas are produced with organic corn masa. Pupusas are traditionally served with a side of curtido (cabbage slaw with vinegar) and salsa roja. Find the recipe for curtido on the side panel. www.trespupusas.com. Authentic.