HEAT oven to 350ºF. Reserve 1 tsp. sugar. Mix remaining sugar with pudding mix. Combine fruit in large microwaveable bowl. Microwave on HIGH 1 min. Stir in pudding mixture and water.
SPOON into 8-inch sq. baking dish. Mix baking mix and milk. Drop in mounds over fruit mixture. Mix reserved sugar and cinnamon; sprinkle over dough.
BAKE 35 to 40 min. or until fruit mixture is hot and bubbly and biscuits are lightly browned. Serve warm topped with COOL WHIP.