Method
Combine lamb, onion, carrot, egg, parsely, oregano, lemon rind and garlic in a medium bowl; shape mixture into 6 patties.
Cook patties on BBQ or Frypan until lightly brown.
While patties are cooking, combine ingredients for tzatziki in a small bowl.
Cut loaf of bread into 4 pieces, split each price in half and toast cut-side up.
Sandwich lettuce, patties, beetroot and tzatziki between bread pieces. Serve with lemon wedges.
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