Place a large baking sheet upside down on middle rack of oven and preheat oven to 425°F (220°C). Butter 1or 2 more large baking sheets.

Crust: In large bowl, combine all-purpose and whole wheat flours, baking powder, oregano and salt. Pour in Milk and butter; stir with a fork until soft dough forms. Turn out onto lightly floured surface and knead a couple of times just until smooth. Divide into 6 pieces. Roll or pat 3 pieces into 6-inch (15 cm) circles and place on prepared baking sheet.

Topping: Spread pizza sauce on each crust, leaving 1/2-inch (1 cm) border. Sprinkle with ham and vegetables as desired. Sprinkle with half of the cheese.

Place pizzas on baking sheet on top of the hot baking sheet in oven. Bake for 12 to 15 min or until crust is golden, toppings are hot and cheese is bubbling. Meanwhile, repeat with remaining 3 pizzas. If you don’t have another baking sheet, leave pizzas on the work surface while you add toppings and reuse the prepared baking sheet when first batch is done (there’s no need to let it cool).

Tip for Kids: Kids and parents can make the dough together. The kids can shape the crusts and shred the cheese while parents chop the toppings. Then, let each family member add their own toppings to customize their personal pizza.

Cooking Tip: Preheating a baking sheet helps make a crispy pizza crust. Use a pizza stone instead if you have one. If you have perforated pizza pans, you don’t need the hot baking sheet.