Heat oven to 350°F. Place frozen rolls on microwavable plate. Microwave uncovered on High 10 seconds; turn over and microwave 10 seconds longer.
Press and stretch each roll into 4-inch round with 1/4-inch-high rim around outer edge. Using fork, prick dough generously. Spray cookie sheet with cooking spray. Place rounds 2 inches apart on cookie sheet; brush surfaces with beaten egg.
In small bowl, mix granulated sugar and cinnamon; sprinkle over rounds. Bake 7 to 10 minutes or until golden brown. After 5 minutes, prick crust if it starts to bubble. Cool completely, about 10 minutes.
In same small bowl, beat cream cheese with electric mixer on medium speed until smooth. Beat in powdered sugar, whipping cream and lemon peel. Spread half over top of each round; top with blackberries.