M&S Steak & Kidney Shortcrust Pastry Pie Butter enriched shortcrust pastry pie filled with British beef and beef kidney in a rich gravy. Serve with crispy potato wedges and garden peas. Oven cooks in 25 minutes. Serves 1. 100% of M&S Select Farms products meet our high quality and environmental protection standards. We know and trust all our Select Farmers, so you can trust M&S for your fresh food.