HEAT oven to 425ºF.
COMBINE first 5 ingredients.
UNROLL pizza dough on lightly floured surface; roll into 12x8-inch rectangle. Use 3-inch cookie cutter to cut dough into 20 rounds, rerolling scraps as necessary; place in single layer on baking sheets sprayed with cooking spray. Sprinkle with cheeses; top with tomato mixture.
BAKE 8 to 10 min. or until edges of crusts are golden brown and mozzarella is melted.