Patties can be made up to one day ahead. Keep, covered, in the fridge. Or freeze in a single layer on a tray covered with baking paper. When frozen, store in a freezer-proof container for up to two months.
500g beef mince
1∕3 cup raw couscous
3 green spring onions, thinly sliced
1 tblsp Moroccan seasoning
1 egg, lightly beaten
Salt and pepper, to taste
2 tblsps olive oil
2 round Turkish rolls, split, toasted
Butter lettuce leaves, canned sliced beetroot, sliced tomato and tzatziki, to serve
To make patties, combine beef, couscous, onions, seasoning and egg in a large bowl. Season with salt and pepper. Mix well.
2 Divide mixture into four equal portions. Shape portions into patties. Flatten to about 12cm in diameter.
3 Heat oil in a large, non-stick frying pan over a medium heat. Add patties. Cook for about 6 minutes on each side, or until browned and cooked through. Remove.
4 To serve, top base of rolls with lettuce, patties, beetroot and tomato. Dollop with tzatziki. Replace tops of rolls before serving.