Wrap corn tortillas in a large cloth; place in microwave and heat for 40 seconds. Place a spoonful of the chicken mixture in the center of a warm corn tortilla, roll it up and secure with a toothpick. Repeat with rest of tortillas.
Heat oil in a skillet and fry each rolled tortilla on all sides until golden brown. Place tacos over a paper towel.
Serve two tacos on each plate and garnish with a dollop of sour cream, a spoonful of queso fresco, shredded lettuce and avocado. Provecho!