Heat the oil in a frying pan, tip in the onion and fry for 5 minutes or until golden. Stir in the garlic, cumin, paprika and oregano and cook for 2 minutes. Tip in the beans and the chicken and heat through, then stir in the tomatoes and season and keep warm.
Lay a Casa Mendosa® tortilla in a non-stick pan, sprinkle with cheese and heat until melted. Top with avocado slices. Slide the wrap onto a board, spoon over a quarter of the chicken filling and roll up tightly. Repeat to make three more wraps.
Plate and serve on the side with guacamole and lime wedges for squeezing over.