Combine the chicken mince, garlic, capsicum, red onion, olives, feta, parsley, oregano and egg. Add a good seasoning of salt and pepper. Mix this together really well.
Divide the mixture into 4 roughly even portions. Use damp hands to form patties (it’s a sticky mix) and cook these in a pan over a medium heat for approximately 4-5 minutes on each side until browned on each side and cooked through.
Grate the cucumber and squeeze lightly to remove some of the liquid. Add to the Greek yoghurt along with the garlic. Season well.
To assemble burger, spread one side of the lightly toasted Simply Soft Sourdough bun generously with the yoghurt sauce. Top with lettuce. Place the patty on top of this and finish with sliced tomato, feta and red onion.