Step 1

Combine mince, onion, garlic, carrot, egg yolk and sauce in a large bowl.

Step 2

Shape mixture into four 2cm-thick patties. Place on a plate. Cover with plastic wrap. Refrigerate for 30 minutes.

Step 3

Heat oil in a large frying pan over medium-high heat. Add patties. Cook for 4 to 5 minutes each side or until cooked through.

Step 4

Place salad leaves, tomato and cucumber on roll bases. Top with patties, sauce and roll tops. Serve.