HEAT oven to 450°F.
ADD butter to 9-inch pie plate; heat in oven until melted. Tilt pie plate to evenly coat bottom and side with butter. Beat flour, salt, milk and eggs with whisk until blended; pour into pie plate. Place on lowest oven rack.
BAKE 18 min. Reduce oven temperature to 350°F. Bake an additional 10 min. or until golden brown. Meanwhile, beat cream cheese and marshmallow cream with mixer until blended.
FILL pancake with fruit; top with cream cheese mixture.