Brown the beef in a large skillet over medium heat, about 6-8 minutes or until no longer pink. Break the meat into crumbles and drain.
Mix in taco seasoning and water; bring to a boil.
Reduce the heat and let the mixture simmer uncovered, stirring occasionally, for 4-6 minutes, or until thick. Let the beef cool slightly.
In a large bowl, toss lettuce, cheese, beef mixture, crushed tortilla chips, and Catalina dressing. Serve and enjoy!
