Jamie’s Italian super-food burgers - Penguin Books New Zealand

Ingredients

• 2 small red onions
• 100ml cheap balsamic vinegar
• 500g lean minced beef
• 1 x 400g tin of cannellini beans
• 1 large free-range egg
• 6 wholemeal buns
• 2 tablespoons sesame seeds
• ½ a small white cabbage (500g)
• 3 tablespoons natural yoghurt
• 1 heaped teaspoon English mustard
• 1 teaspoon dried red chilli flakes
• 1 lemon
• olive oil
• 1 x 125g ball of mozzarella cheese
• 2 sprigs of fresh rosemary
• 2 ripe mixed-colour tomatoes
• 100g rocket