In a blender or small food processor, pulse 1 bag DORITOS^® Nacho Flavored Tortilla Chips until finely ground; set aside.

Heat oil in a large skillet set over medium heat; cook ground beef and onion for 5 to 8 minutes or until browned. Stir in ground tortilla chips; cook for 1 minute or until well combined. Stir in salsa and beans; cook for 2 to 3 minutes or until mixture is thickened and very little liquid remains.

Open remaining bags of tortillas. Add beef mixture, shredded lettuce, guacamole, cheese, sour cream, and pickled jalapeños to each bag.