In large skillet brown ground beef with onion until beef is no longer pink; drain fat and return to skillet. Add taco seasoning and water; cook according to package directions.
Remove taco meat from heat and stir in coleslaw mixture. Divide meat mixture evenly into 4 bowls.
Top each bowl with ¼ cup lettuce, 1 tablespoon salsa, ¼ cup tortilla chips, 2 tablespoons cheddar cheese, 1 tablespoon sour cream and 1 tablespoon guacamole. Serve immediately.