1Heat oven to 400°F. In medium bowl, mix flour, baking powder and salt. Stir in milk and oil until soft dough forms. (If dough is dry, stir in 1 to 2 tablespoons additional milk.) On lightly floured surface, knead dough 10 times. Shape dough into ball. Cover with bowl; let stand 10 minutes.
2Place dough on ungreased cookie sheet; flatten slightly. Roll out to 12-inch round. Bake 8 minutes.
3Sprinkle mozzarella cheese over crust; top with remaining topping ingredients. Bake 15 to 20 minutes or until crust is light golden brown and cheese begins to brown. Cut into wedges to serve.