Prepare the beef: In a skillet over medium heat, cook the ground beef until browned. Drain excess fat. Stir in taco seasoning and a splash of water, simmer for 2–3 minutes. Remove from heat.
Assemble the salad base: In a large bowl, combine romaine lettuce, cherry tomatoes, red onion, black olives, and shredded cheddar cheese.
Add protein: Top the salad with the seasoned ground beef.
Add crunch: Sprinkle the crushed Doritos evenly over the top.
Dress it up: Drizzle with sour cream and salsa, or toss gently to combine.
Garnish: Sprinkle fresh cilantro on top if desired.
Serve immediately for the best crunch and flavor.