Roast beef and tomato ragu – Howard's home from home

Ingredients

• 250g roast beef, cut into small dice
• 50g pancetta, finely diced
• 1 small onion, peeled and finely diced
• 1 carrots, peeled and finely diced
• 1 celery stick, peeled and finely diced
• 1 bay leaf
• 3 garlic cloves, peeled and finely chopped
• 250ml red wine
• 1 x 400g tin chopped tomatoes
• 2 tsp tomato paste
• 2 tsp balsamic vinegar
• 30g parmesan cheese, grated
• ½ bunch fresh marjoram, leaves picked
• Salt and black pepper
• Olive oil for cooking