Preheat the oven to 200°C/400F fan.
Mix the yoghurt, oregano, paprika, garlic granules and salt and pepper, and use to coat the chicken. SEE NOTES BELOW.
Crush the tortilla chips until they are very fine (TIP: I put the tortillas in a bag and use a rolling pin or any hard object to smash them.) Roll the yoghurt coated chicken in the tortillas mixture.
Put the coated chicken breasts onto a grill rack (or cooling rack suitable for the oven) on top of a baking sheet and drizzle with the oil. This helps to make them crispier. Bake for 20 minutes, turning the chicken breasts halfway through.
While they are in the oven, make the hot honey mayo. Mix together all your mayonnaise ingredients in a small bowl and set aside until you assemble your burgers.
After the 20 minutes, remove the chicken from the oven. Carefully move the chicken to one side of the rack and sit the buns cut-side-up on the grill rack. Place a slice of cheese on the top of half of the buns. Return the chicken and bread to the oven for 5 minutes. The chicken should be cooked through and golden (use a meat thermometer to test if you have one).
Stack the chicken burgers in the toasted buns with lettuce, onions and the mayo.