Heat a skillet over medium-high heat.
Add the ground beef or turkey to the skillet and cook until browned throughout.
Drain any excess fat from the skillet.
Stir in the taco seasoning and salsa, mixing well until the meat is coated and heated through.
In a large bowl, combine the chopped romaine lettuce, corn, diced onion, and diced tomatoes.
Top individual servings with the warm seasoned meat, grated cheddar cheese, diced avocado, and a dollop of sour cream.
Just before serving, garnish with the crushed Doritos for the perfect crunch.