Four Cheese Mashed Potatoes

iidahoⓡ potatoes 52.2% , cheddar 23.9% , parmigiano reggiano 12.0% , BLUE 6.0% , romano cheese 3.0% , salt 1.5% , vegetable oil 0.7% , soya bean 0.4% , whey 0.2% , maltodextrin 0.1% , sugar 0.0% , skimmed milk powder 0.0% , but powder 0.0% , monoglycerides 0.0% , CALCIUM STEAROYL LACTYLATE 0.0% , natural flavouring 0.0% , yeast extract 0.0% , paprika extract annatto extract 0.0% , Freshness Preserved by Sodium Acid Pyrophosphate 0.0% , E222 0.0% , E330 0.0% , am tocopherols 0.0% , free 0.0%