1. Brown the beef in a non-stick pan over medium-high heat. Break up the meat with a spatula and cook until about 5 minutes or until no no longer pink. Drain any excess drippings, but keep the beef in the pan.

2. Add the tomatoes, chili powder, cumin, salt, , jalapeno, and green onion to the beef. Stir to combine. Cook for another 5 minutes until tomatoes are soft. Remove from heat and stir in half of the lime juice. Then season with additional salt and black pepper to taste. 

3. In a large bowl toss the chopped romaine lettuce with olive oil and remaining lime juice. 

4. Put the lettuce into a bowl and top with beef mixture. You can add any additional toppings such as mashed avocado, and mashed avocado or your favorite cheese of choice, and sour cream. Enjoy!