In a large mixing bowl, combine the masa harina and salt. Mix well.

Add the grated cheese to the mixing bowl and mix it into the masa harina.

Gradually add warm water to the mixing bowl while stirring the masa harina mixture.

Continue to mix until a dough forms. The dough should be slightly sticky but not too wet.

Divide the dough into 8 equal portions and roll each portion into a ball.

Heat a non-stick pan or griddle over medium-high heat.

Flatten each ball of dough between two pieces of wax paper or plastic wrap to make a tortilla that is about 1/4 inch thick.

Peel off the wax paper or plastic wrap and place the tortilla on the hot pan or griddle.

Cook the tortilla for about 2-3 minutes on each side, or until lightly browned and cooked through.

Remove the tortilla from the pan or griddle and repeat the process with the remaining balls of dough.