Great thing to make with the kids during the holidays! Easy peasy lemon squeezy. Ingredients (serves 4) olive oil 1 red onion , peeled and finely sliced 1 sprig fresh sage , leaves picked 6 higher-welfare beef sausages / mince 1 handful breadcrumbs fresh nutmeg , for grating 250 g ready-made puff pastry 1 free-range…