Heat the tsp. olive oil over a medium heat in a large frying pan.
Add the onion, garlic and chilli and gently sauté together, stirring continuously to avoid burning for 3-4 minutes.
Add the Quorn mince and stir everything together for about 5 minutes until the mince mixture is quite wet, then remove the pan from the heat to allow the mixture to cool a little to be able to be handled.
In a mixing bowl combine the mince mixture, breadcrumbs, beaten eggs, chilli powder, chopped coriander and season with a little salt and pepper.
Using your hands form the mixture into 4 burger patties, coat very lightly with the plain flour and rest, covered in the fridge for at least 20 minutes.
Heat the tbsp. olive oil in the frying pan, and gently cook the burgers on each side until lightly browned.
Serve the burgers in the burger buns, on top of the iceberg lettuce and slices of cucumber, topped with slices of tomato.
Video
Notes
The use of chilli here is optional.The burgers can be frozen uncooked or cooked.