Preheat oven to 220°C (or 200°C fan bake). Preheat an oven tray.
Dice ham and drain pineapple. Divide sauce between pizza bases and spread evenly to cover. Sprinkle cheese, ham and pineapple evenly over pizzas.
Transfer pizzas to preheated tray. Cook for about 16 minutes, until the bases are crisp and golden around the edges.
Pizzas topped with ham and pineapple.