Cook the ground beef in a large skillet over medium-high heat, breaking it up as it cooks. Add taco seasoning and stir well.
While the beef is cooking, take a bag of Doritos and crush it up slightly (leave it in the bag) to make room for all the toppings. Open the bag, then roll down the sides to create a taco bowl.
Layer your walking taco with shredded lettuce, the taco beef mixture, cheddar cheese, salsa, and sour cream.
Notes
Tip: Make your taco meat ahead of time! We often cook the meat and season it at home, then store it in a large airtight container or freezer bag. This makes prep for camping or party events a breeze and keeps cleanup to a minimum.