Mini beef Wellingtons

INGREDIENTS

• olive oil
• 1 red onion, peeled and finely chopped
• 1 carrot, peeled and finely chopped
• 2 cloves garlic, peeled and finely sliced
• 1 stick celery, trimmed and finely chopped
• 1 pinch cumin
• 1 pinch chilli powder
• 500 g quality lean beef mince
• 200 g tinned kidney beans, drained
• 1 tablespoon tomato puree
• sea salt
• freshly ground black pepper
• 2 large free-range eggs, beaten in separate bowls
• 2 teaspoons plain flour
• 500 g puff pastry
• 1 handful Cheddar cheese, grated