Mix the cheese, chorizo, beans, coriander and salt and freshly ground black pepper in a bowl.
Spread the mixture onto one of the tortillas and top with the other.
Heat a little oil in a frying pan and pan-fry the quesadilla for 2-3 minutes on each side.
Meanwhile, heat the olive oil in a pan and sauté the garlic for one minute. Stir in the tomato and heat for a few minutes. Blend until smooth.
To serve, transfer the quesadilla to a plate and serve the tomato sauce alongside.
