Place the tortillas to one side whilst you mix all the remaining ingredients in a large bowl.
Divide the mixture into three portions.
Put a large non- stick frying pan on a medium heat, place a tortilla in the pan and sprinkle with one portion of the cheese mixture, place another tortilla on top and press together.
Heat for about a minute and a half and then flip the tortilla over and cook for about another minute and a half until the cheese has melted and the outside of the tortilla is nice and crispy.
Do the same with the remaining ingredients and cut each quesadilla into 8 wedges.
Serve with Salsa and Guacamole.
Once cooked they could be eaten hot or cold, or you could make the tortillas ahead and keep them in the fridge ready to cook up for a quick lunch.