In a large skillet over medium-high heat, brown the ground beef, breaking it up with a spoon as it cooks.

Once the beef is fully cooked, drain off any excess grease. Return the beef to the skillet.

Stir in the taco seasoning mix and water. Bring to a simmer, then reduce heat to low and cook for 5-7 minutes, stirring occasionally, until the mixture has thickened slightly.

In a very large serving bowl, combine the shredded lettuce, rinsed kidney beans, and diced tomatoes.

Spoon the warm taco meat mixture evenly over the lettuce mixture. If serving immediately, top with shredded cheese.

Garnish the salad generously with crushed Doritos, a dollop of sour cream, and a drizzle of salsa before serving.