In a large skillet over medium heat, cook the ground beef or turkey until browned and cooked through, about 7-10 minutes. Drain any excess fat.
Add the taco seasoning to the cooked meat, along with 1/4 cup of water. Stir to combine and let it simmer for about 5 minutes until the sauce thickens.
While the meat is cooking, prepare your toppings by washing and chopping the lettuce, tomatoes, and green onions.
Once the meat is ready, take a handful of Nacho Cheese Doritos and gently crush them while still in the bag to create a crunchy base.
In a taco shell shape (you can use clean hands or a taco holder), add a generous scoop of the seasoned meat, followed by the shredded lettuce, diced tomatoes, and shredded cheddar cheese on top.
Finish your tacos with a dollop of sour cream, a sprinkle of chopped green onions, and sliced jalapeños if you like a bit of heat.
Serve immediately while the Doritos are still crispy to enjoy the crunch!