01 - In a large skillet over medium heat, cook ground beef, breaking it up with a wooden spoon, until fully browned. Drain any excess fat.
02 - Add taco seasoning and water to the skillet. Stir to combine, then simmer for 2 to 3 minutes until the beef mixture is thickened. Remove from heat and allow to cool slightly.
03 - In a large salad bowl, combine chopped romaine lettuce, cherry tomatoes, diced red onion, black beans, corn, and shredded cheddar cheese.
04 - Spoon the slightly cooled taco beef over the salad mixture.
05 - Just before serving, add the crushed Doritos and your chosen dressing to the bowl. Gently toss until all ingredients are evenly coated and mixed.
06 - Serve the salad right away while the Doritos are still crisp.