1. Preheat oven to 190°C/170°C fan forced. Line a baking tray with baking paper. Using a 7cm cutter, cut 8 rounds from pizza base; place on tray. Bake for 6 minutes.
2. Lightly spread rounds with pizza sauce. Top with ham, corn and pineapple; sprinkle with cheese. Bake 12 minutes more until bases are crisp and cheese is melted. Cool slightly. Garnish with basil.