A possibly unorthodox version of a wonderful Latin American dish.
To warm the tortillas, heat a skillet without any oil over medium high heat. Place the tortillas in the pan, one at a time, allowing them to warm thoroughly on each side. Let the tortillas brown a bit in spots. Stack them as they finish cooking and keep them covered with a towel to keep them warm. You can re-warm them in the microwave, but make sure to cook them in a pan on the stovetop first to bring out their best flavor. It take only a few minutes, and it make a big difference.