Minced Beef Roll - Crynfiction

Ingredients

• 1 onion, peeled and finely chopped
• 1 potato
• 2 garlic cloves, minced
• 1 carrot, peeled and finely chopped
• 2 tablespoons olive oil
• 1 stick celery
• 1 large egg, lightly beaten
• 50 g grated cheese
• 4 tablespoons tomato puree
• 500 g quality lean beef mince
• 200 g tinned kidney beans
• 2 teaspoons plain flour
• 500 g puff pastry
• Olive oil