HEAT oven to 375°F.
PLACE berries in 9-inch square baking dish sprayed with cooking spray. Mix 3/4 cup sugar, tapioca and cinnamon in large saucepan; stir in water and lemon juice. Bring to boil on medium-high heat, stirring constantly. Pour over berries in baking dish; set aside.
STIR baking mix, remaining sugar and milk until mixture forms soft dough. Drop by heaping tablespoonfuls over fruit mixture.
BAKE 28 to 30 min. or until topping is golden brown. Cool slightly.