Heat a large skillet over medium heat. Place two tortillas in the skillet and cook until warm and softened, about 30 seconds per side. Fill the tortillas with about 1 1/2 ounces of the pork, 1/4 cup of the lettuce, and 4 teaspoons of the salsa.
Repeat with the remaining tortillas and serve. If you prefer to heat all of the tortillas at once, microwave them on high until warm and softened, 1 to 2 minutes.