M&S 2 Southern Fried Chicken Burgers Frozen Juicy 100% chicken breast burgers with a golden, peppery and moreish crumb. Oven cooks from frozen in 25 to 30 minutes. Serves 2. 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.