Shepherd's pie

1 tbsp olive oil

1 brown onion, finely chopped

1 carrot, peeled, finely chopped

500g lamb/beef mince

2 zucchini, trimmed, finely chopped

2 tbsp plain flour

500ml (2 cups) beef stock

125g (1/2 cup) passata (tomato pasta sauce)

1 1/2 tbsp Worcestershire sauce

2 dried bay leaves

850g potatoes, peeled, chopped

125ml (1/2 cup) milk

30g butter, chopped

115g (1 1/3 cups) coarsely grated cheddar

Heat the oil in a large saucepan over medium-high heat. Cook the onion and carrot, stirring, for 1 minute or until tender. Increase heat to high. Add mince and cook, stirring with a wooden spoon to break up any lumps, for 5 minutes or until mince changes colour. Add the zucchini and flour. Cook, stirring, for 1 minute. Gradually add the stock, stirring constantly, until combined. Add the passata, Worcestershire sauce and bay leaves. Reduce heat to medium. Simmer for 15 minutes or until thick.

Meanwhile, cook potato in a saucepan of boiling water for 12 minutes or until tender. Drain and return to the pan. Mash until smooth. Stir in the milk and butter. Season with salt and white pepper.

Preheat grill on high. Divide mince mixture among four 375ml (1 1/2-cup) capacity ovenproof dishes. Top with mash and cheddar. Cook under grill for 3 minutes or until golden and the cheddar melts.