Mix together taco seasoning ingredients. Set asdie
Brown meat and drain excess grease.
Add water and taco seasoning (either recipe above or ready-made) and heat on medium until liquid reduces, stirring occasionally.
Separate romaine leaves trimming any excess stalks on end.
Place about ¼ cup of taco meat on each leaf.
Top with cheese and tomatoes.
Add any additional toppings you desire and serve immediately.