1/2 cup vegetable oil
Heat the oil in a skillet over medium-low heat. Make an assembly line with your corn tortillas, mashed potatoes and cheese. Place about a tablespoon of potatoes on the center of the tortilla and spread toward the edges leaving a little space and then top with cheese. Roll up into a taquito. The tortillas will fold easy if you heat them up just a little not too much. If you try to fold them unheated they will break. Place them seem side down in the heated oil and fry them until the taquito is golden brown on both sides. Place them on a platter lined with paper towel to drain off excess grease.
Serve with a simple salad, a side of guacamole, sour cream and salsa.