4 cups frozen mixed vegetables (peas, carrots, corn and green beans), thawed
1 cup HEINZ HomeStyle Savory Beef Gravy
2 cups hot prepared ORE-IDA STEAM N' MASH Cut Russet Potatoes (1/2 of 24-oz. pkg.)
4 oz. (1/2 of 8-oz. pkg.) PHILADELPHIA Cream Cheese, cubed
1 cup KRAFT Shredded Cheddar Cheese, divided