Meatball Hero Grilled Sandwich

Ingredients

• 500g Beef Mince (20% fat)
• 3 good quality pork sausages
• 1 tbsp garlic puree
• 2 tbsp panko breadcrumbs
• 2 tbsps grated parmesan cheese
• 1 large egg
• 2 tbsp flat parsley chopped
• Salt
• pepper
• 1 white onion finely sliced
• 2 garlic cloves finely sliced
• 1 tin of plum tomatoes
• 100ml beef stock
• 2 tbsp balsamic vinegar
• 5 fresh basil leaves
• 1 tbsp Worcester sauce
• 100g cheddar cheese sliced
• 1 mozzarella ball sliced
• 8 slices of sourdough bread
• 50g butter
• 6 tbsp mayo
• 2 tbsp pesto