In a bowl gently combine ground lamb, oregano, garlic, coriander, cumin, salt, pepper and egg.
Shape into 4-6 patties and place on a tray lined with wax paper.
Grill patties 3-5 minutes per side, turning once. Resist the urge to push on the patties and squeeze out the juice, you want all that flavour.
Toast bread slices. Allow people to dress their burgers to taste offering olive mayonnaise, tadziki, red onion, cucumber and arugula.