Cherry berries on a cloud

6 egg whites
1/2 teaspoon cream of tartar
1/4 teaspoon salt
1 3/4 cups sugar
6 ounces cream cheese
1 cup sugar
1 teaspoon vanilla
2 cups chilled whipping cream
2 cups mini marshmallows

Heat oven to 275 degrees. Grease 9-by-13 pan. Beat egg whites, cream of tartar and salt until foamy. Beat in 1 3/4 cups sugar, 1 tablespoon at a time, until stiff and glossy. Do not under beat. Spread in pan. Bake 1 hour. Turn oven off, leave door closed for 12 hours. Mix cream cheese, 1 cup sugar and vanilla. Beat whipping cream in chilled bowl until stiff. Fold whipped cream and marshmallows into cream cheese mixture. Spread over meringue; refrigerate at least 12 hours. Top with cherry berry topping (21 ounces cherry pie filling, 2 cups sliced strawberries and 1 teaspoon lemon juice).