HEAT oven to 350°F.
BEAT cream cheese, sour cream and dressing mix with mixer until blended. Add broccoli and 1-1/2 cups Cheddar cheese; mix well.
SPREAD into 9-inch pie plate.
BAKE 20 min. Sprinkle with remaining Cheddar cheese; bake 5 min. or until melted. Serve with NABISCO Crackers.