Add the beef and taco seasoning to a skillet and cook until fully browned. Break it up into small pieces as the beef cooks. I did not drain the fat of my beef as I used a lean ratio of 97/3. I you want you can drain some fat of.
In a sauce pan, over medium heat add the Velveeta and Ro*Tel® tomatoes with its juices. Cook until the cheese melts for about 10 minutes
Add a layer of lettuce to the taco shell, add a couple of spoonfuls of beef and top with the Velveeta sauce. Top with sour cream, cilantro and your favorite toppings.