Heat a skillet over medium-high heat and add a drizzle of oil. Add the ground beef or turkey and cook, breaking up with a spatula, until browned (6–8 minutes).

Sprinkle taco seasoning over the cooked meat and stir to coat. Add 1/4 cup water and simmer for 2–3 minutes until the seasoning is absorbed.

While the meat cooks, combine sour cream (or Greek yogurt) and salsa in a bowl; add lime juice and stir to make the dressing. Season with salt and pepper to taste.

In a large bowl, combine chopped romaine, cherry tomatoes, corn, red onion, and cilantro. Toss lightly.

Add the warm seasoned meat atop the salad, then sprinkle shredded cheese, diced avocado, and crushed Doritos.

Drizzle with dressing, serve immediately, and garnish with pickled jalapeños or a squeeze of extra lime if desired.